"I won a lot of time back so that I can go back to writing 15 novels" is a little off putting for many.
Start simple with usage of your reclaimed time. Put your phone in another room and watch a 2 hour movie, uninterrupted. That's a thing a lot of people today can't even do, so already an accomplishment.
Even pure boredom, doing absolutely nothing, is healing. The point is that you have uninterrupted time, it doesn't matter if you spent it "productively".