How do I accept that my dreams won't come true?

I always wanted to be a decisive man, with a college degree and a organized life. But you know? I am one of the most indecisive people you would ever meet. Instead of talking to a girl, I sit there thinking doing it about it and then give up. I finally made a decision to go to college, but it has been difficult because frankly, I am not ready. Why? I think that it is my nature. I am a weak human being who can not control what I do. Basically I act based on feeling and not reasoning. I am unorganized and get easily distracted. I have been trying to change, but it has proved impossible. I want to accept that I will always be like this. How can I accept this?