Zero Confidence

Hey Guys! I’m really struggling with myself and I have no idea how to fix it. I rarely have good days where I like myself and feel good about myself. I was always really confident and then I got pregnant and found out I had been cheated on for the entire 3 years I was in a relationship. I decided to stay for our son and I am always comparing myself and whenever I find him glancing at another girl I crawl way down into this hole. I feel like I just hate myself. Since I’ve had my son it’s gotten worse. I have more insecurities than I did before and I don’t know what to do. I try to be positive and talk positively about myself but I keep finding myself in this place. How do you stop comparing yourself? I can’t even go to the pool without feeling embarrassed or like complete crap.