Write an article based on this "Ask your parents when they're in a good mood. Give your parents time to consider it and don't bother them about it. Stay calm if you aren't getting what you want."
Your parents are going to feel ambushed and be more likely to say no if you ask them to let you make an account as soon as they walk in the door or wake up in the morning. Choose a calm time during the day when they aren't doing anything important. Pick a day when they seem like they're content to get the most positive response. Don't try to make your parents happy beforehand by being nicer than you normally are. They'll notice that you're only being nice to get what you want. Try to talk to both parents at the same time. If you only ask one of your parents when the other isn't around, they're likely to say they need to talk with your other parent first before giving you an answer. Start the conversation by letting them know what you want to talk about. Say, "I'd like to talk to you about making a YouTube account," and give them a second to ask questions before stating your case. If you pester your parents or ask them frequently, they're going to think that you're going to get addicted to YouTube. This will make them more inclined to forbid you from getting a YouTube account, so give them time to think about it after you ask. Wait at least 3-4 days before asking them again if they say no the first time. One of the worst things that you can do is throw a tantrum if your parents say no. If you lose your cool, it will only confirm for them that you aren't mature enough for a YouTube account. In fact, if you take the rejection like an adult it may help them change their mind in the future. Even if you really want to talk back, never show your parents disrespect when trying to get something. It will only work against you. If you find yourself getting frustrated, try slowing your breathing down and counting from 1 to 10 in your head. This is a simple way to calm down when you're frustrated.