Your first step to learning how to say "good luck" in multiple languages is deciding which dialects you want to learn. Think about your purpose. Why do you want to learn this skill? Maybe you are going to be taking a European vacation. You might be motivated to learn this phrase in the native tongue of each country you will visit. Perhaps you have recently started working in a company with global operations. "Good luck" might be useful to know in business settings. If you'll regularly be working with the Tokyo office, learn some phrases in Japanese. You might also want to learn to better communicate with friends or family who don't speak your native language. Consider learning phrases in a language that your loved ones speak. For example, if your grandmother speaks Italian, spend some time studying Italian phrases. When learning new phrases, spend some time reflecting on how you will use them. Like English, most other languages will have formal and informal expressions for wishing someone well. Consider learning a few phrases in each language, so that you will be prepared for multiple occasions. For example, if you plan to use "good luck" in a professional setting, you will want to learn to say the equivalent of something like "Best of luck with your client meeting today." In English, you might say something like "Break a leg" as a casual way to wish a friend luck. Check to see if there are equivalent phrases in the language you choose. For instance, you might look up "informal well-wishes in Arabic". Maybe you are not preparing for a specific situation, such as a trip. If you are just being proactive about learning new phrases, good for you! There are several other factors you can consider when deciding which languages you want to choose. Consider the world population. For example, Mandarin Chinese is spoken by more than a billion people. It might set you apart professionally and personally if you can learn some helpful phrases in Mandarin. Maybe you are looking for ways to show cultural sensitivity. Consider learning Arabic or Spanish, if you know people who speak those languages.
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One-sentence summary -- Consider your motivations. Think about the situation. Choose multiple options.

It is immensely arduous for people to quit who have had drug dependency for a long period of time. Leaving the drug once and for all suddenly will just make the withdrawal symptoms worse and you might lose hope to continue. It is much easier if you initially decide to slow it down and then ultimately leave it completely. Don't try to go cold turkey! If you have been smoking weed at least twice a day then try limiting yourself to once a day for the next week. This will help the body get used to less serotonin in a much healthier and easy way. Quitting an addiction can be difficult beyond belief so you need to keep reminding yourself that you have made a pledge to become finer for your own sake. Write it on a piece of paper or make a sticky note on your phone saying "I want to quit." Make sure you can always see it. There might be times when you would want to break all the chains and light that thing up but then this note will help you to remember the decision that you took for your own benefit. In order to do that, you should get rid of everything that reminds you of marijuana paraphernalia, posters, music, movies, etc. This is an important step because even if you believe you have solved the problem and are keeping the mentioned above simply as souvenirs, you are more likely to get tempted to start smoking again. Picture loving cake while knowing that you should never have it again and yet constantly keeping your favorite kind on the counter, where you can always see it. It is an unnecessary trigger that will only torment you. This includes irritability, lack of sleep, decreased appetite, fatigue and maybe even some headaches. Luckily, marijuana withdrawal is not that long of a process it only takes about 10-15 days, depending on factors such as your age, health status and use duration. However, it gets more challenging afterwards when you have to keep away from weed for the rest of your life. There are many factors that might trigger your use or could make it very difficult to deal with life without smoking. We'll discuss long-term strength shortly.
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One-sentence summary -- Take it slowly. Remember that you want to quit. Remove demotivators from your life. Be prepared for withdrawal effects.

Since you don't have an author, the first element of your bibliography entry is the title of the website. Use title case, capitalizing all nouns, pronouns, verbs, and adverbs in the website's title. Place a period after the title. Example: Financial Accounting Standards Board. List the institution or organization that maintains the website, followed by a comma and a space. Then type the date of publication, if available, in month-day-year format, followed by a period. If no date is available, place a period after the name of the website's sponsor. Example: Financial Accounting Standards Board. Financial Accounting Foundation. Copy the full URL for the website into your citation, followed by a period. Then type the word "Accessed" followed by the last date you accessed the website in month-day-year format. Enclose this phrase in parentheses, placing a period outside the closing parentheses. Example: Financial Accounting Standards Board. Financial Accounting Foundation. https://www.fasb.org/home. (Accessed October 29, 2018). Place a superscripted number at the end of any sentence where you mention the website. Your footnote includes the same information as your bibliography entry. The only difference is that the elements are separated with commas rather than periods. The only period in the footnote is at the very end. Example: Financial Accounting Standards Board, Financial Accounting Foundation, https://www.fasb.org/home, (accessed October 29, 2018).
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One-sentence summary -- Type the title of the website in italics. Provide the sponsor of the website and date of original publication. Include the URL and date of access. Use commas instead of periods in footnotes.

Especially if you don't have much practice dancing yet, look into taking as many different classes as you can. Focus on hip hop and urban dancing. A big part of being a trainee (and hopefully an idol!) is being able to perform exceptionally, and that includes dancing. If you can't take actual classes, use the internet to learn new skills. Even if you're already a great singer, chances are you could still learn something from a coach. If nothing else, they can give you tips to increase your endurance when you perform. If your main skill is dancing, that is okay! But having the ability to sing will increase your odds of getting noticed when you audition to become a trainee. Rapping is an important part of the K-pop lifestyle, and it can also be fun! Listen to more rap music to get an idea of the rhythm and start imitating your favorite artists. If you get caught up on the words, practice tongue twisters to loosen your lips. When you audition, you'll need to perform songs that the producers already know, but when you're a trainee, you'll be working on writing and choreographing your own original music. It's a good idea to work on both aspects of being a performer. Take a music writing class if you can, and spend a lot of time listening to K-pop and watching music videos so you can start emulating popular styles.
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One-sentence summary --
Take dance classes to become a better and more versatile dancer. Invest in a vocal coach to strengthen your singing abilities. Work on your rapping skills to round out your skill set. Practice writing your own music and perfecting well-known songs.