NEED TO LOSE WEIGHT!!!

I am 4 months PP, and my son is EBF. I gained quite a bit of weight during my pregnancy and honestly don’t think I’ve lost any. I may have even gained more. I have a few days where I eat great but then mess it all up again. Today was my 2 year wedding anniversary and looking at the pictures of myself made me HATE the way I look now. Like my heart sank when I saw the pictures of me. I need help!!! I want to be able to eat right and exercise but in a way that won’t hurt my milk supply. Any advice on losing weight while breastfeeding would be appreciated so much. I can’t stand to look at myself anymore. 😢