Nobody else is going to believe in you the way you do. Of course you will have friends and family who support you and even proclaim to believe in you, but you want to make it so that even when their faith begins to waiver, yours is still standing strong.
Your beliefs, your attitude and what you feel and think about yourself should be the source from which you draw your motivation, not your condemnation.
Believing in yourself is the one thing that will hold strong even if you see things are not going your way. You have to have something deep inside of you that will keep you going, even though the outcomes are not what you’re expecting.