Losing weight having PCOS

So about six years ago I had an eating disorder and since I’ve started eating around one meal a day which is all I can stomach really- but I’ve been gaining weight like crazy. I recently found out I have pcos Which explains the east weight gain. I don’t want to go back to not eating because it’s not healthy and I’m trying not to fall back but I want to lose the 50+ pounds I’ve put on in the past few years because of pcos. I hate my body more than anything and feel like it’s not mine.