Forgive yourself for your faults and your mistakes and move on.
Goals help you channel your energy into action.
The things you want are always possible; it is just that the way to get them is not always apparent. The only real obstacle in your path to a fulfilling life is you, and that can be a considerable obstacle because you carry the baggage of insecurities and past experience.
If you are not excited about your own dream, how can you expect anybody else to be?
Don't confuse who you are with the results that you produce.
Doing great requires that we become great people, and all of us can become great people.