You find yourself in a vicious circle, which they themselves created. But there is a solution. And it is in you.
Understand that there is no ideal. You can always jump a little higher, do a little better, get a little more ... If all my life to count such losses, the loss of life and thus become. It is better to see the positive side. Praise yourself for what could be done. Reward purchase some thing just to buy would be considered a waste. Celebrate your small victories.
Assess your personality from the side. Yes, you have weaknesses. Think about what you could do with them. Unfashionable hair and bulging tummy - reparable. And get rid of these problems you can right now. But the length of the legs and the ability to joke propensity to some science, you can not fix can. So just accept yourself for who you are.
Start writing itself plans. Set the bar, you have to reach. And by doing another thing, praise yourself for it. When you have a detailed plan will not have thoughts "and could be and more." You've done everything you wanted. This is a reason for pride.
Do something. Toiling from boredom, idleness, and only remains as to blame themselves. But once you find exciting experience - and all of the energy goes into it. And if you dare to show their creativity to others, their praise will be one more reason to believe in themselves.