Insecured :/

So i have really bad acne, sometimes to the point I'm to scared to go to school or where I'll put some makeup on where they are. And as of right now its bad bc I'm suppise to be on my cycle and I've been stress eating because of it. As of right now im like 145 and im 15 y/o but body wise i look fine but I'm not bc im over weight and i nred to watch what i eat bc it isn't healthy. And ive been trying to workout but i don't have any energy to do any of that.

Any advice?