ellie I should get into meditation, I found out about your "hack" years ago through pure concentration as I was trying to sleep one night, I occasionally finish dreams of mine that I like (as they seem ever so rare) as it feels that the same mechanisms that are present while you're dreaming are present while you're in this state.
My own "hack" so to speak is something I found quite recently in order to deal with some mental issues that have been plaguing me for the past two years.
I managed to effectively deal with everything I was suffering from within less than an hour, by simply focusing and having a one-to-one with my self, imagining a conversation between me and a psychiatrist, with whom I laid bare all of my issues and theorized on how they may have come about precisely.
It seems a little silly but considering my mental state immediately before and after I cannot emphasize enough how effective it was, and the best part is how it did not cost me a single penny, and I'm still enjoying its effects over a month later (particularly notable as my previous method only gave me a day of respite, and I later learned it was incredibly unhealthy)
This could be considered a form of meditation, which I why I'd like to try some of the more traditional forms of it.
Another hack I've made use of for longer than I can remember and has been the habit of many others I've known:
Pacing. Seriously, just walk. Pace around your house, it helps you think, it's a known thing. Your thoughts come about clearer and faster than if you're sitting or laying down. But also help me, I was laying down as I began writing this post but involuntarily got up and began pacing around my room.