Believe in yourself
Your opinion of yourself becomes your reality. If you have all these doubts, then no one will believe in you and everything will go wrong. If you think the opposite, the opposite will happen. It's that simple.
The 50th Law
The greatest fear people have is that of being themselves, they want to be 50 Cent or someone else. They do what everyone else does even if it doesn't fit where and who they are. But you get nowhere that; your energy is weak and no one pays attention to you. You're running away from the one thing that you own - what makes you different. I lost that feat. And once I felt the power that I had by showing the world I didn't care about being like other people, I could never go back.