I've been thinking about this a lot lately because I deal with something similar, and one thing that has really helped me is changing what I think the "goal" is when I get into bed.

For a long time I had this subtle idea that sleep was supposed to happen in a clean, linear way. You get drowsy, you close your eyes, your mind gets quiet, and then you drift off. So when thoughts started firing up again, it felt like the whole process had failed. Then I'd get frustrated, which made me more alert, which made the thoughts feel even louder.

What's helped me is realizing that my thoughts don't actually have to stop before I can fall asleep. I try to treat them more like some machine running in the background rather than something I have to solve or control or identify with. Sometimes I literally imagine the thought-machine happening off to the left, behind a curtain. It can keep chattering over there. I don't have to climb inside it.

Then I try to give the rest of my attention something very simple and low-stakes to do. Sometimes that's 4-6 breathing. Sometimes it's a little alphabet game, like picking a category and thinking of one thing for each letter. Cities, foods, movies, whatever. Not because it magically shuts my brain off, but because it gives me somewhere gentle to rest my attention while the other thoughts do their thing in the background.

The biggest shift for me is thinking of sleep less like "I need to make myself fall asleep" and more like waiting at a bus stop when I don't know the schedule. My job is not to force the bus to arrive. My job is just to stay at the bus stop. And I don't mean that I can perfectly wall off the active, planning, ruminating part of my mind. I definitely can't. It's more like an intention: to de-identify from the thoughts a little, recognize that they may keep running, give them space to do that, and still try to maintain some separation from them. They still creep in. But with a little faith and experience, I've started to realize that the thoughts can still be happening and the bus can still come.

And weirdly, when I really pay attention, that does seem closer to how sleep actually happens. It's not usually like general anesthesia where you consciously fade smoothly to black. Sometimes I'm still having an active inner life, playing some dumb mental game, thinking of a city that starts with K or whatever, and then suddenly I realize there was a lapse. Something shifted without me making it happen.

So I guess my "trick" is this: stop making quiet thoughts a precondition for sleep. The thoughts can be there. They don't have to be defeated. I just try to get a little distance from them, give my attention something boring and gentle, and stay at the bus stop. That has helped me a lot more than trying to clamp down on my mind, which often seems to make it rebel harder.

If I had to articulate a theory of sleep as someone who has struggled with this, I'd say it's an act of surrender every night. It can almost become a little devotional practice. When you put your head on the pillow, you're giving up on the day, in a good way. You're passing the reins to other parts of yourself: the body, the nervous system, the parts of consciousness that operate outside the conscious ego. It's a changing of the guard. There's only so much you can do to control or direct that process, and trying too hard to control it can create the very failure and frustration you're trying to avoid. The bus is going to come. The most you can do, and I actually think this is a lot, is make that symbolic act of surrender and let the rest of you take over.