After realizing that you are in a relationship that diminishes your self-esteem by making you feel the unworthy and less powerful side, you need to consider a simple plan to backtrack and go back to the whole, self-respecting person you want to be, right?
Perhaps the only place to begin is with yourself. Looking at this primary and inevitable relationship, try to make a plan to forgive your mistakes and learn how to appreciate the good things you do…Every time you catch yourself saying: “Yes, I did that, but it didn’t last (or was too expensive) (or was a lot of work) (or I was working on the wrong direction…) STOP! saying “yes, but” thwarts the process of recognizing the good work you do. Learn to say “I’m able to do excellent work,” and leave the self-recrimination behind.
One should always work on building and nurturing the intimate relationship with oneself, specially if our minds are full of other people’s negative expressions. Learn to hear yourself saying negative appreciations, without even evaluating if they are right or not, and teach yourself to stop.
Healing from abuse is based on the important decision of shutting out any hurtful expression; and expressing our needs to be treated with love and understanding. Perhaps it will take you some time to get to the point of feeling confident in asserting yourself in this aspect. Try at the beginning to put some distance between you and the abuser, and signal that you need time alone to repair and heal. And use this time to remember all your positive aspects of which you should be proud of!