With kindness comes naïveté. Courage becomes foolhardiness. And dedication has no reward. If you can't accept any of that, you are not fit to be a magical girl, and if you are not a magical girl, you can't control the past. He who can't control the past cannot command the future, and he who is unable to command the future cannot conquer the past.
I was a North American Fall Webworm in my past life. Those were the good ol' days. What were you in your former life?