Is it me or my mother?

Sounds like Mom has some troubles. For some reason she has a lot of anxiety about you. Could be she made some poor decisions when she was your age and because she has not come to peace with them she doesn't know how to treat you or tell you that she cares. Try to give her a lot of space and don't bite when she dangles the bait by doing or saying things she knows will usually get you to talk back. This is a really hard time to not have your Mom on your side I know but you sound pretty grown up for your age so keep doing what is right and hold on. Peace & love.