For TPTR induced depression? I mean come on, its been months now and I keep researching for answers that I will never find, meaning that will always escape me and some sort of closure that I will never receive.
I have never been so affected by film/tv except maybe for "Where the Red Fern Grows" when I was a child but that was because I owned an Irish Setter. (not a Redbone coonhound but when you are a kid all red dogs are red dogs.)
There is some fear in letting go, but we must let go of the expectation for closure. You are on the path, even though you know not where it leads. Perhaps yoir dharma could simply be the search.
SamX posed a thread here that maybe there isn't ONE solution/explanation. Damon Lidelof compared the season to the Talmud--to be reexamined and reinterpreted and reappropriated, without one specific storyline in mind from the originators. I am of this school of thought. It's like the end of 2001. I like it better because it doesn't have one unquestionable narrative.
Read The Final Dossier. It offers quite a lot of closure, at least of a sort. Many mysteries "solved," at least in part, answering many of the questions posed by theories. It's up to you if you want to accept Mark Frost's version of things or reject even that, I suppose.
It's unnerving. But I like it this way. It makes it seem more like a real thing, more like art than junk food tv. There's no such thing as a real person that you "figured out", or some answer to "what it all means" in life. This whole TP experience is almost expressly about uneven footing and irresolution. The characters in the show are all super good sports about accepting the grossly unusual, and we here at home are sorta asked to do the same.
For me, when I have experiences - travel, or prom night, or a car accident, or a new lover - it's like I am disinclined to take photos. I don't really want the fact of the matter, I would rather bathe in and evolve with the emotions of the moment. Even years later. A series of emotions and expansion of horizons always towards enlightenment. Black Lodge is enlightenment too. I like that Twin Peaks is a rock in my shoe, I like that I am truly at a loss to explain Audrey's very reality. It's like a wrapped up present that you never opened. It could still be anything. Why collapse that wave form when possibilities are without bound?
There's enough closure out there already, and once you have it you've got nowhere else to go.
Create some fan art... or YouTube videos (mine below). Anything to get it all out.
America's Gun & Drug Epidemic in Twin Peaks The Return - YouTube
Fire walk with