Entrepreneurs learn from failure, and from success. They really learn by doing. Because it can feel so lonely when you are out there plowing new frontiers, you can lose hope. You might want to throw in the towel. However, here is a great article to read if you are thinking about giving up. The article starts like this. Click over and read the whole thing.
But you are NOT. You are alive in a vast world with infinite destinations. Take a moment to remind yourself of this. Go outside. Look at the sky and the clouds. THIS is the space in which you really live. Breathe it in. Then look at your current situation again.