You have doubted yourself.
You have doubted yourself constantly.
You have doubted yourself consistently.
You have given up on yourself numerous of times.
You have exhausted your thoughts and energy by believing you are incapable of achievements.
You have self-loathed yourself into believing you do not have the tools to your success.
You have tossed brilliant ideas behind you because you believed you were unable to bring them to life.
You have gotten no where from doubting yourself and no where from giving up on yourself.
You have not fulfilled your desire for greatness by sustaining the doubt.
You have doubted and gave up on your capabilities all of your lifetime.
So guess what?
Try believing in yourself this time and see what happens.