It works in the way described above. With gambling, you at first intentionally work yourself up (before the bet) and then quiet down (after the bet). It is this cycle that makes gambling so attractive because we are wired that way to feel alive. We need both stress and stress relief at the end of the day
Well, if you think about it. Always winning is indeed pretty boring, it's very satisfying for sure. But after that you'll crave a challenge, that's why on your next bet you sometimes wager more.
I am not sure if you can always winning because that will not be possible in gambling. But if you can get your luck every time you gamble, then the winning will be yours. That will need big money to spend to expecting the winning, and that will not work with people who only have little money. So in the next bet, you need to think about not to use bigger money to gamble.