It's easy to find someone to tell you that "You can do it", but you know to yourself that you can do anything, but not everything.
So, what you need is some inspiration, and motivation for building your life, creating success, achieving your goals, and overcoming your fears.
Here are some pieces of advice:
To live a creative life, we must lose our fear of being wrong.
Take up one idea. Make that one idea your life--think of it, dream of it, live on that idea. Let the brain, muscles, nerves, every part of your body, be full of that idea, and just leave every other idea alone. This is the way to success.
If you do what you always did, you will get what you always got.
Opportunities don't happen, you create them.
Letting go of your fears and self doubt helps in achieving your goals.