I’d try to do tasks with some sort of reasonably objective testing system or I’d go crazy.

If that’s not possible for a task, then minimise the time spent; try to spend a bit more time doing the other type of thing.

I don’t mind doing something artistic as a passtime/hobby. But no way could I do only tasks like that as my sole contribution to society - I’d probably have to do as much drugs as a stereotypical rock-star.