Whether or not you accomplish your goals is not up to fate, its up to you. If you want it, you can have it. If you dream it, you can achieve it. You've heard it all before, yet you still don't believe that it's true. There is no question that you can accomplish your goals; the real question is "can you see your own success?"
Your vision of yourself is the deciding factor. You must be able to believe in your own abilities enough to picture your own victory. If you can't imagine it, who will?
Thinking about what you want to do is pointless, if you don't truly believe it can be done. You are the keeper of your own destiny. You are the guardian of your desires.
The little engine that could said it best, "I-think-I-can-I-think-I-can," and so can you.