Not that I am in the habit of turning to semi-obscure TV sitcom stars for wisdom, but I once found in the newspaper a quote from Jenna Elfman that struck me as so wise, I clipped it and kept it over my desk for years.
Guru Elfman said, “Do other things. I don’t just act. It starts to feel like you’re digging into an open wound when you do the same thing all the time. It becomes achy, sore, and tiresome.”