Everyone here on this thread is super special in their own, unique way. It's normal if you don't feel like it at times but what's important is that you don't forget you're special. Never stop believing in yourself. Even if you fail, at least you did your best and that's all that matters. If someone ever puts you down, tell them to their face that you're worth something in this life.
I'm being the biggest hypocrite in posting this, to be honest.