I don't feel like going into the specifics because I've already explained the situation to a few of my coworkers/family, and it just makes me sick to think about it. Basically, I made a dumb decision that cost me a lot of money, and even as I was doing it I knew it was dumb, and I still went through with it. Everyone I talked to was basically like, "Why did you do that? That was dumb." I don't know how to stop thinking about it. I just keep replaying it over in my head wondering why I made the decision I did, trying to rationalize it so I can at least feel a little better about it, but I can't come up with anything good that would explain why I did it. It was just a dumb decision that I knew was dumb, and I did it anyway.

I've thought about it all day over the course of the last couple of days and haven't really done anything as a result. Yesterday I think I literally just sat on my couch, mindlessly scrolled through my phone, and wouldn't let it go. The thing is, I can't set back the clock, it's done and over with, so ruminating on it is just making the situation worse if anything. I know all this, but I still can't stop thinking about. I feel like my brain is on fire.

How do I just stop?