I'm still struggling

I just feel so dumb and stupid because of this person would do is me. they would call me crazy & it is really affected my perception and I'm trying to recover but I don't know how. I want to secure my future but this person has a history of trying to sabotage my future goals. they also took credit for the things that I did by myself because they were involved. I just feel isolated and I stay in bed all day because of the abuse that was done to me.