> If I just accepted myself as me
Mistake #1. You have to visualize yourself as temporarily overweight, then go about exercising/changing your diet (you know, more fiber, less carb's) to reach that new set-point.
Measure your caloric intake, and your weight every day. If your intake is less than your standard metabolic activity, you'll lose weight. It's that simple.
> I feel like, eventually, people just end up settling and stop fighting to better themselves.
Don't do that! Yes the majority of people do that, but that doesn't mean you have to as well. I have too many old healthy people in my family to fall into that trap.