“If you don't like something, change it. If you can't change it, change your attitude. Don't complain.”
Are you going through life just dealing with everything? If there's anything to take from Maya Angelou's words is that you don't have to deal with it. You can change it. You can change how you react to it.
If you don't like where your fitness level is at, if you don't like the way look, if you want to be stronger, then do something about it. Go out, work hard, develop a sound nutrition plan. Work for it.