I've found that doing something totally different can help me get going again. So I typically have projects of several different kinds going on.
Of course it doesn't always work out as planned! Was going to try to get a few more of the small trees out of the way of where I want the extension of my driveway to be. Tackled one that was a little too big (and turned out to be too hard as well) and broke my big loppers. So now I can't do any more on that until I get to a garden center for new loppers.