Until I read "How to Fail at Almost Everything and Still Win Big"[1] which makes the strongest argument I've seen for having a "talent stack" and combining skills that aren't typically combined. Each skill increases your odds and essentially this boils down to Good + Good > Excellent. You can leverage a combination of average skills to great effect.
The author describes himself as mediocre at art, decent at writing a joke and having business experience... not that noteworthy in and of themselves, but mixed together resulted in Dilbert.
1. https://www.amazon.com/How-Fail-Almost-Everything-Still-eboo...
Scott Adams talks about combining skills like that in his book How to Fail at Almost Everything And Still Win Big [0]. He talks about his own combination of skills being "funnier than average" and "decent at drawing". I thought it was a good read. His talk of systems vs goals was also very worthwhile.
0: https://www.amazon.com/How-Fail-Almost-Everything-Still/dp/1...
[1] https://www.amazon.com/How-Fail-Almost-Everything-Still/dp/1...
https://www.amazon.com/How-Fail-Almost-Everything-Still-eboo...
The one thing to take away from this election is that persuasion trumps everything else. It's scary and crazy!
This is a book written by Scott Adams of Dilbert fame, he has failed at more things than you can imagine. You are unique, divine. So hang in there. Start off with eating right and exercise to get increase your energy. Then follow your curiosity. You will be surprised what you are capable of. Take a course on Coursera, it could be anything. Then build upon that to propel forward.
Since you mentioned the latest book by Scott Adams, it's called "How to Fail at Almost Everything and Still Win Big: Kind of the Story of My Life" [0]. I read it recently and I think it's a good book. It has some nonobvious ideas, like systems thinking vs. goal-oriented thinking.
[0] - http://www.amazon.com/How-Fail-Almost-Everything-Still-ebook...
Choose yourself is a similar themed book. http://www.amazon.com/Choose-Yourself-James-Altucher-ebook/d...
Best 16$ spent in 2013.