Your persistence is your belief in yourself.
You can NEVER rise higher than your expectations of yourself. Expect the BEST!
The more you like yourself, the better you perform in everything that you do.
Never complain, never explain. Resist the temptation to defend yourself or make excuses.
If you think a certain thought long enough and hard enough, it becomes a fixed belief and you will find yourself behaving on the outside in a manner consistent with it.
Visualize and think about yourself as you would ideally like to be, not just as you are.
Everything you do to improve your physical well-being will have a positive impact on how good you feel about yourself.