I followed that exact same lifestyle for 2 years (and also 2 years prior of us not knowing what we were doing), I would consider it impossible to have any relationships, romantic or casual. Now that I am older and have more responsibilities, I don't think it's something I could pull off.

Learned a lot though, got pretty good at programming because of it (I am early in my career).

My thinking now is that if I want to make a somewhat complex/ambitious game, I will need to take the route of other successful artists, become independently wealthy first.