You've put in the time, and you haven't seen the rewards yet, so you're naturally discouraged. Tim Ferris covers it well on his blog (link below). Mostly everyone goes through phases where they are unmotivated or feel like they can't win at what they are doing. It's part of life. The important thing is not to give up on it before it has a chance to even take off. You'll hate to be asking "what if" later on if you decide to move on.

http://www.fourhourworkweek.com/blog/2008/10/03/harnessing-e...