How do I prioritize? I have no life. That is a start, but I am also lazy. Basically, I just try to do something everyday. try a song skirmish. try one of the official or non-official challenges. I do try to just finish a song and move on. I like to write quickly. Things can always be revisited later. You kind of have to let go and experiment with ways to manufacture Inspirado.
See if people are looking for a collaborator in the forums. Collaborations are a good way to finish songs you might be stuck on. Look for someone who needs what you do.
I also have large sheets of paper tacked to a wall with ideas. a February calendar and my song progress (in- and completed). I sort of do whatever works in the moment.