Something that worked for me was imagining that where I wanted to be — an author, primarily of fiction, making good books, making good comics and supporting myself through my words — was a mountain. A distant mountain. My goal.
And I knew that as long as I kept walking towards the mountain I would be all right. And when I truly was not sure what to do, I could stop, and think about whether it was taking me towards or away from the mountain. I said no to editorial jobs on magazines, proper jobs that would have paid proper money because I knew that, attractive though they were, for me they would have been walking away from the mountain. And if those job offers had come along earlier I might have taken them, because they still would have been closer to the mountain than I was at the time.