This may sound a bit shallow, but the only thing that's ever worked for me is I always ask myself the question: "What is the next step that I can do right now to make me the wealthiest man on this planet?"
This usually leads me down a path of questions that result in me having to teach myself something to build something to solve a particular problem which fulfills a need. I know that this may seem vague, but try it in your own context of life and see what answers it yields you.
"This usually leads me down a path of questions that result in me having to teach myself something to build something to solve a particular problem which fulfills a need." - but better make a quick post to hacker news first.
This usually leads me down a path of questions that result in me having to teach myself something to build something to solve a particular problem which fulfills a need. I know that this may seem vague, but try it in your own context of life and see what answers it yields you.