I have a simple measurement system of my gambling. If the balance is larger than I have deposited, then it was a productive and lucky gambling session. If it is lower than deposit, then I consider that I had fun for that money. Pretty simple. But all other statistics, for example, in which slot or game I win or lose more, % ratio of success, size of bets and etc. This is less important for me. I would gamble in a game that I enjoy most, then in a game that I win more.
Lol, same here

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I believe people who gamble for fun barely care for statistics or having a count of the games they are playing and how much money they have won or lost in a particular game, all they see is their balance to find out whether they have won something on top of their initial bankroll or have lost some money from it.
Those who gamble to earn money from gambling tend to have stats for almost everything, they keep track of the games they play, how much they spend one each game, how much they have won or lost in each game they have played in a session, and much more. You can't even keep a count for everything you do in a casino and besides, what's the fun if you are spending half of the time writing stats for your session instead of enjoying the games?