If I were you I'd think that I'm missing something important. Skills and work is not the only existing thing in life. Judging from what you wrote about your self I don't think you have a problem there. In fact I'm sure you don't. Try to look at a bigger picture. There's definitely something missing in your life. Find out what. I bet it's not work related, but work is probably pointless without it. How old are you? What's next? Want family, kids? Climb Everest?...

And forget about this ADD crap. You are absolutely normal living thinking person.