A major Potterhead and book enthusiast, as well as an avid author who is in a constant crisis in which she is hit with a severe case of Writer's Block, so she feeds off of other's ideas instead of her own.
Whoever you choose to be is your choice. All those components that you dislike about yourself, the ones that you want to change because others told you to -- keep them because they shape you, and you only. There is only one person like you in the world, and that is, well, you!
It doesn't matter what others want to say. As long as you represent the best of yourself and nothing else, that is fine. What you choose to be is your right, not theirs, and what they choose to say is their right, not yours... But same goes with you. Show them their wrong by doing the right thing.