BF has anger issues

I have issues from past abusive relationships, flash backs, and fears insecurities on my own. I am not perfect, I have a temper I can be a yeller butI am also able to communicate and not let anger consume me.

Can I change who I am?

For so long I’ve really felt like I couldn’t define myself, and it contributed to depersonalization and other problems. Now looking at it I see it’s not that i can’t define myself, it’s that my definition of myself is the