I m not the best because i dont have to be the best. U will always find someone who is better than u. So there is no need to worry. Be proud of urself. Be proud of ur abilities. Be proud of ur everything. U have to understand other people are also humen. They also have complexes. So be gratefull to Allah for what u have and dont be sad for thing u dont have. Believe me u have more than u deserve.