I made a lot of mistakes trying to please and impress people just to have them by my side. This is what I would like to tell my 15-year-old self:

"Embrace your identity. Love your passion. Don't ever forget who you are and what you want to be just because you want to fit in. It's alright to compromise but not to the extent that you lose yourself. Do what you always love like drawing. Your future self will thank you for that. Stop treating anyone with food and stuff just to please them. It's good to be generous but some people will take advantage of your kindness and use you to get what they want. Save the money, it's not worth it because they will leave you as soon as you graduate and part ways."