As a painter you're responsible yourself, 100 percent. In film, you have the editor, the director, the other actors. It has the advantage of not being solitary. ↗
You do not need to leave your room. Remain sitting at your table and listen. Do not even listen, simply wait, be quiet still and solitary. The world will freely offer itself to you to be unmasked, it has no choice, it will roll in ecstasy at your feet. ↗
I think any song should sound good just played on a solitary instrument with the vocal. If you have those basics you have all you need. The production then just polishes that idea into the finished thing. ↗