Yeah, while I don’t think it’s ever too late to find love 25 certainly is, I was a bit younger but over twenty when I had my first relationship.
Also try to not focus too much on your weight. I know society™/capitalism wants you to think you’re unlovable if you’re fat but that is obviously bs. If you want to loose weight do it but to it for yourself first (maybe try to get fit and not loose weight per se?). Love is not only about looks.