The only thing left is to solve that one part, and everything else should follow along like a domino. Everything seems to point at scheduling, but my head can't help but see red alerts everywhere with that idea, in particular because schedules are usually so rigid, with very specific hours to work on. I have little time to experiment on it, so I hope I figure it out.
128 days later: this + sleeping properly (including not minding to close my eyes for like 5 minutes after an hour of work) is working out!!!