I know too well the risks of overproduction for a musician (and for other artistic enterprises), so I'm comfortable with this being uncomfortable about not knowing where to flow.
The song is stuck, waiting for vocals already composed and rehearsed to be recorded. But everything in me resists to putting a new song in the world before being able to give it a more proper "home". As a musician, I've learned to listen to and obey that kind of intuitions. As i always mention in this blog, my guild has an outrageous "job hazard" death rate. Only actors are more fucked up in my view.
That is, of course, unless you play it safe. In that case you'll have a nice life and easy digestion, and will produce regularly pieces of neat crap. But I think a musician should not be a manufacturer.
A few possibilities I'm thinking of, still in a scramble, are: focusing on finding an ally, and move from there to create a band adding one person at a time. Playing gigs through some e-place like Concert Window --again, as the Jamendos of the world, it might be a device only useful for personal gratification, i.e. the enormous waste of quality music not properly communicated to others. But at least I should try it to know it for sure what I can expect of that. The logistics in that case are simpler than a real-life concert.