In Sunday School we read the book Chasing Daylight. It's about discovering your purpose in life, and I thought it was pretty good. Basically it says that it's better to move than to stand still. Even if you're going in the wrong direction, as long as you're moving, trying to do something good and glorifying God, he'll steer you to where you need to be. The book uses the story of Jonathan as an example (1 Samuel 14).
Jonathan's father King Saul was nervous to go into battle against the Philistines because they were vastly outnumbered. Jonathan knew that God was behind them, so he and his armor bearer set out for the Philistine camp alone. He said, "It may be that the Lord will work for us, for nothing can hinder the Lord from saving by many or by few." He didn't know if God would keep him alive or not, but he knew that the Philistines wouldn't be beaten if the battle wasn't fought.
My advice to you is this - move forward. Do charity, volunteer at church, evangelize to friends, family and coworkers. Even if it seems small, it will get the momentum going. Once you start moving God will put you where he wants you.