I am who I am because of the pain, struggles, and failures I have experienced. Only through such difficulties have I become a better person, and to go back and change those things would mean that I am not happy with the results.
I am happy with my progress, and while it hurts to be beaten, deceived, and discarded, I wouldn't change those things if it meant that I would have to remain ignorant to the nature of our world and the people who I have allowed into my life.
I would choose to repeat every mistake again, suffer every deception and injury, and retain myself as I am.