You've got your Justins who have all the back flipping dancers and stuff, and then you've got Lemar, and he totally moves you without having to do all of that, and he's gorgeous.
At the very end of a book I can manage to work for longer stretches, but mostly, making stuff up for three hours, that's enough. I can't do any more. At the end of the day I might tinker with my morning's work and maybe write some again. But I think three hours is fine.
If you're really invested in feeling bad about the world, there are a lot of media outlets out there that you can turn to.