You are special, and you were born to do some special work in this life. You are the way you are because there is some special work out there that requires someone like you to do it. Without you, that piece of the puzzle will be missing.
Your are special because you are special to someone. It may be your partner, your parents, or somebody you will meet in the future. It may even be someone you don't know - but they know you, and cherish your existence.
You are special, because no other mind in the world thinks and works in the same way, and has the same material (experiences and memories) to work on. As a result, no other mind will have the same output on a given topic.
You are special, and the world would be missing a unique part of its richness if you did not exist. It would be like a colourful quilt made up of pieces of different colours, but one piece was missing. Wouldn't it be sad?
Even your imperfections are unique, and they make you even more special. Only with your imperfections you could have experienced the world in this particular way, and have the particular memories you have. You can then use that experience to help other people, especially others with the same imperfections.
Some Related Musical Inspiration: