I have spent a considerable amount of time and energy over the last few years becoming the person that I wanted to be. To a large degree, the person that I am today is a result of that time and effort. I'm not talking about "life decisions" and consequences of those decisions. I'm talking about deciding who to be and going and being that person.
Life is about living. It's about being.
Though, you should be warned. At the end of the day, if you succeed in being who you wanted to become, you will have become something bigger than yourself. Like Bruce Wayne, you run the risk of becoming consumed by your identity. And, you can't turn back. The moment Bruce Wayne became Batman, Bruce Wayne was lost forever. In Tim Burton's Alice in Wonderland, when Alice found her "muchiness" she acquired something that could never be lost.
When you become somebody, you run the risk of becoming "awesome." And, when you become awesome, you will have alienated yourself from everybody around you. You will have alienated yourself from the reality to which they belong.
You will, inevitably, become more alone than you have ever been. All because you decided to be somebody, and actually succeeded.