I'm not going to call my mother more often
Why don't you want to talk to your mother? Is there something you are trying to hide from her?
I have been thinking for a while that my mother is shit.
Relationship with parents can be complicated but you shouldn't cut them off just like that. It might be something that you regret later in life.
Maybe, but I have always hated her.
It is best to try to have contact with your family. If you don't people will have to worry about you and not know that you are well and safe.