Yep, because she makes you feel like there is no point. But there is a point. You have to remember that YOU ARE WORTH IT. Being clean feels good, no one, not even your wife can take that away from you. So...do it for you. You take care of yourself, for yourself.

Emotional abuse makes you feel bad, and doubt yourself. I hope you can find some help, maybe a counselor or very good friend that you can talk to. And there are plenty of very nice, compassionate, wise people here. Always just a keypad away ...
And don't believe the mean words anymore. They aren't true. I wish you only the very best.