I think I'm a bad wife
What does your husband say about your role as a wife?
My husband says that I do not hold down the household and that I'm not good at cooking.
Your husband may feel as though you don't live up to his standards as a wife, but being self-effacing is destructive to yourself. When you see you are being cruel to yourself, work on dropping that habit.
I just feel like I'm not living up to my wifely duties. I feel the need to fix this problem.
I believe your husband is being way too harsh toward you and that's what is making you think this way. I would highly recommend you both seek marriage counseling, that would be the best thing for you.