The reference to Bob Dylan is a good one! Certainly his voice and guitar playing is not great and he put out some stuff that I would consider half baked in terms of today's standards.
Blowin' in the wind reportedly took 10 minutes to write (the melody is lifted straight from a public domain song). Dylan went straight out and performed the song at a local folk club but bungled up all the lyrics because he couldn't read his own hand writing. The point is that you never really know what is going to take off and what isn't. And if it doesn't take off then so what? Nobody is likely to hear it anyway.
If you produce stuff to the very best of your ability at the time and continue to learn then I think you will win by continually producing and publishing, producing and publishing.