The old routine may need fewer hours and better boundaries this time.

Going back to something rarely works when you go back at the old volume. Whatever ended it, exhaustion, illness, a stretch when life needed you elsewhere, the previous terms are part of that history and not a neutral starting point. The activity can be the same while the hours and the edges around it are different. That is a genuine return, not a diluted one.

Decide the size before you begin again: how many hours, which days, what you will not agree to this time. Say the limits out loud to whoever is affected.