I have the college dreams fairly regularly. Usually they are about forgetting to attend class for a whole semester.
But my other recurring dream is about being an LDS missionary again. I think that experience in real life was even more stressful than college—definitely more guilt-inducing. In the dream I'm my current self—mid-40s, married, kids, career, atheist—and yet somehow the church has managed to coerce me back into the mission field alongside the 19-year-old true believers.
Almost every other former Mormon missionary I've asked about it reports having similar recurring dreams.