Okay, look. I am perfectly aware that the problem is one of mindset, and I've never said anything else. I easily get frustrated, that's just how it is. It used to be like that even when I enjoyed dominion, but good moments totally made up for it.
Now, if I play dominion, it is nothing but frustration. I'm frustrated by terminal collision, I'm frustrated by first player advantage, I'm frustrated by my opponent taking a long time to think, I'm extremely frustrated by comebacks, I'm frustrated by hitting 7$, and so on and so forth.
Frustration causes me to be unable to track stuff properly, which is always the first sign for bad play on my part. If I'm in a good mindset, I will usually know what the VP difference is, how many villages/terminals I have, and some specific things about the game, like how many junk cards I have left. If I lose track of that stuff, I already failed and playing my best game, and it instantly causes me to make hasty decisions. I am powerless against this effect, even if I see it coming.
The reason for this is that I now play another game. And because I play that game so much and like almost every aspect about it, I also think about it constantly. Playing dominion just feels silly and like a distraction and a waste of time, and I even catch myself thinking about aspects of Prismata as though they were part of dominion before I realize what I'm doing.
Obviously, all of these are personal issues and not related to the game itself, which I still respect as being very good, but it doesn't matter. This is not something I can overcome, I did try my best in the last two tournament games that I played, and I made a big effort to stay nice and not let any of my frustration show. It's fine that you ask about this, but I think you could have phrased it as a question rather than as "I think you're wrong about this, here is why", when you really don't know me anywhere near as good as I do. But whatever. At least you weren't being rude about it.