What is something worth buying as a teen? please explain.

sense most online business are having black friday is it worth buying something or should i pass and try to save my money. im a teen i have around 200$ but i would like to limit myself to 100$ or less. im probably posting this in the wrong place but im not sure, i just want to make a smart choice when it comes to money.

also i will not be investing in stocks or crypto so please dont suggest it.