My mom hates my art. what do i do?

As a parent, I suggest you take the time to explain some of your artwork to her. It may be that she is just worried that this is a reflection of you inner feelings. Seeing your child draw something morbid can be very scary...I am speaking from experience here. Once my son explained to me what he was trying to say, I felt much better. Don't pretend to be someone you aren't but do help your mother understand.