I'm mad at my mom for not buying me a hoodie
Why did your mom not buy you a hoodie?
Also, my mom is not well educated.
I understand you're mad at your mom. It's just a hoodie so you should not make a big deal about it. There is no reason to be rude about it. What does education have to do with it?
Nothing but what's rude about it? She hasn't bought me any clothes in five years.
It is still minor, and maybe she has no money to buy clothes for anyone even herself. Get a job and be independent. You will be proud of yourself for it.