I feel like I was a mistake

The only mistake I see is that train of thought. Don't think like that, I mean, more often than not, it's all in your own mind. Be proud of yourself, no matter what, and be brave always. Problems will never cease to exist, but will is always stronger. Feel free to talk whenever you're down. Have an amazing day.

Come and talk to me, Miss Katie. Inbox me and tell me what's troubling you.

I know two things for certain about you.
1) Not everything you do is wrong! You can do many things well (but you haven't discovered all of them yet).
2) There is someone that love's you just the way you are.