It's just that when we've gotten a little warmed up to gambling, we start to slowly lose our heads. We don't even notice it. For example, when I was playing slots, I'd often spontaneously raise my bet, completely without any strategy. Because I knew the multiplier was about to hit, and, of course, nothing happened. Because of this, I made a lot of money playing slots. It's just that some strange, spontaneous feeling makes us suddenly, absolutely, believe in miracles.
Oh, I do exactly the same thing as you, I do it all the time. If I see I'm getting lucky, I start raising the bet. And as always, I lose. Just no luck, that's all. I keep waiting for a multiplier, but it never comes. It's downright frustrating. It seems like my deposit has just started growing and I need to raise the bet, but it only makes things worse. Why is that? It's because that's how the casino is set up. You can't cheat it. It's pointless.