Keep a familiar pleasure in the plan alongside the necessary tasks.

Weeks made entirely of obligations get through the tasks and take something out of you anyway. A familiar pleasure, the same walk, the same music, the meal you always order, works as a fixed point in a moving week. It is not a reward for finishing, it is part of what keeps you able to continue. Cutting it to make room is usually a false saving.

Before a heavy stretch, put one small dependable thing into it and treat that as unmovable. Choose something you already like rather than something new, since new things ask for energy you may not have.