One point I missed but should have included (I'm still 26, so endlessly blathering on to clarify a point is permissible for now!): I think it all seems worse because listlessness is (relatively) new to me. I used to be quite driven, which makes this regression (or whatever it is) harder. Here's something I've learned but daily need to be reminded of: Comparing yourself with people who are more driven will nearly always make you feel as though you've failed. But being driven isn't the most important thing one can be. Unless it's being driven by love, which beats everything.
May we all know such drive.