Just need uplifting

So right now I weigh what I weighed before I had my son but everything is kinda loose. In high school I lost 115 pounds in 10 months and have since struggled with my weight.

This photo was a 6 month before/after. On the left I was 227, on the right (current) I'm 190.

I'm almost 5'11 so I'm tall and know I can never be a size 0, but I still see myself as that 300 pound girl...with all the stretch marks I have and loose skin it's hard to see myself as average weight or whatever.

I just can't seem to be happy with my body and now my partner and I both want another baby but I'm scared of going through the weight gain process all over again. 😥 Idrk if I have a question or just need better support but I do really wanna tighten things up before I get pregnant. Any advice??