Trying to lose weight post partum

I've always struggled with weight loss. It's always seemed harder for me to lose weight then the people around me. Dont get me wrong, I have done it before and was actually becoming successful last year before i got pregnant. I now have my beautiful baby boy who is almost 4 months old and i still have all the baby weight. Dont get me wrong I was a big girl before pregnancy but now it's not just being big. I dont lose weight when i eat healthy and my body dysmorphia is the worst it has been in all my life. I want to lose some weight and just be generally healthy for both my physical and mental health. I'm a first time mom and was wondering if there were any other moms that had some tips or tricks to lose the baby weight plus some. I appreciate anybhelp anyone can give me.