Sorry that it gets you down. Honestly I can feel like that myself. There are many things that are needed in life, not just clever people. You may feel you need to be more than what you are because of what "society" expects, or you don't want to live a simple life. If I could go back in time, I'd learn to be happy working even the most menial underpaid jobs. I hope you get more replies. I like to recommend listening to Eckhart Tolle on youtube, I feel his view about life is simple and calming.