While you don't need a whole new wardrobe, having a new outfit for the first day can make you feel more confident. If your school doesn't require uniforms, save up to get an outfit or 2 that you like, or get a new pair of shoes to wear for the year. Once you have an outfit that you like, make sure you style it appropriately for school. Keep in mind that whatever you wear should follow your school's dress code. If you don't have a lot of room in your budget for a new outfit, mix and match your old clothes to make new outfits, visit a thrift store to find inexpensive clothes, or organize a clothing swap with your friends where you can all trade clothes. Visit an office supply store or local supermarket to pick up a few folders, pencils, notebooks, and other supplies that your school wants you to have. If you're not sure what you need, check your school's website, ask a store associate, call the school to ask them, or look up lists for your grade level online. Your classes might require you to get specific supplies, like a protractor for geometry class or a world map for history. You don't have to get a new backpack and lunch box every year, but if yours have rips or tears in them from last year, remember to get a new one when you're shopping for school supplies. If you have the time, pick a day and pretend like it's your first day. Go to bed early the night before, wake up on time, and do your morning routine. Head to the school to see how long it will take you to get there, and go in the school to find your classes and locker if you're able to. Many schools have new student orientations to introduce the school to new students. See if your school has one of these and go to it to prepare for your first day in a new school! Try to go to bed at your normal "school year" bedtime every night starting about 2 weeks before classes begin. If you're having trouble getting to bed at night, try waking up earlier so that you're tired earlier in the day. Try to follow a consistent routine for bedtime, including brushing your teeth, turning off electronics, and taking time to relax. If you need to, try reading a book or listening to calming music before you get ready for bed to get into a relaxed mindset. Whether you're going to a new school or heading back to the same school, bullying is an issues for many kids. If you're having anxiety, feeling sad or are scared, sit down with your parents or someone you trust to discuss what's going on. Ask them to talk to your principal and school counselor with you to address the issue before the school year begins. If you have a close friend who you can trust, try talking to them about how you're feeling. If they know you're worried about being bullied, they'll be able to watch your back and help you if you do end up in a bad situation. During the school year, if you're experiencing bullying of any kind, including cyber bullying, don't be afraid to tell a teacher or school counselor. They'll likely be happy to help you and can help you find a solution to the problem.
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One-sentence summary -- Get 1-2 new outfits to wear during the first week. Purchase the supplies that you'll need for the school year. Do a practice run a week or so before the first day. Adjust your sleep schedule 10-14 days before the first day. Talk to your parents if you're worried about bullying or teasing at school.

The gelatin itself that you will need is a cost effective and easy to use substance, and when applied correctly, can give the appearance of scars, wounds, or burns to your skin. To make your gelatin scar, you'll need: Gelatin applicator (popsicle stick/makeup spatula) Glycerin Gelatin (or ready-made gelatin) Hot water Makeup (scar color) Mixing cup You should have a firm idea of where your new lines of your scars will run on your body. Gelatin is very friendly when it comes to removal, so you don't have to worry about pain if you apply it to an area with hair. For more artistic scar patterns, gently drawing guide lines with an eyebrow pencil can be very helpful. You might consider hash-mark patterns, jagged lines, or menacing x shaped scars for your look. Whether this is your face or your arm, a clean and dry surface is best for applying your fake scar. A baby wipe works wonders, but if you don't have that available, a mild soap and warm water will do the job just as well. The simplest ratio you can use for mixing up your gelatin scar solution is 1 part gelatin to 1 part hot water in your mixing cup. The problem with this sort of ratio is that the gelatin can get dried out and shrink, putting you at risk for losing your prosthetic scar. Many FX makeup artists recommend adding some glycerin to prevent your scar from drying out too fast. Add teaspoon glycerin to your 1:1 gelatin/hot water mixture. Stir your gelatin mixture thoroughly, otherwise you might have bubbles form in the mixture and spoil the effect. Be prepared to move quickly after preparing your gelatin; gelatin solidifies very quickly. In your mixing cup, bring enough water to surround and heat your gelatin to a piping-hot temperature. Ready made gelatin usually comes in a bottle, which you have to heat to liquefy. Once it is liquid and at a safe temperature, you can apply it to your body. It's always best to test gelatin heated this way on a safe part of your body, like on your hand or forearm, before applying a large quantity of it to your body. Using your gelatin applicator, move the gelatin over the surface of your skin in the fashion that imitates the kind of scar you want to have. Due to the fact that your gelatin will not be malleable for long, you will need to apply your scar to your body fast. If you are trying to create a scar effect over a large portion of your body, or if you are trying to create an intricate scar pattern, you may need to prepare your gelatin in several batches. While your gelatin is in the final stages of setting, you can tap it gently to create a puckered effect. Now that your gelatin scar is fully set, add some makeup to your scar to make it look more realistic. Foundation or concealer are great for blending the edges of the false scar, but a dash of something more livid can make your scar look like a fresh wound. If you plan on an exciting night out, or if you're the type that can't keep your hands off yourself, you might want to consider using a setting spray to keep your makeup on your gelatin. A smear caused by an accidental gesture will leave your look less than believable. Gelatin applied directly to the skin can be removed easily by peeling it off. Any stubborn bits can be loosened with warm water and a mild soap. This will ensure that all makeup and gelatin have been removed.
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One-sentence summary --
Ensure you have all the necessary items. Outline your new lines. Ready your canvas. Prepare your gelatin. Heat up water for ready-made FX gelatin. Apply your gelatin mixture. Stain your scar to scare. Seal your makeup, if necessary. Remove when finished.