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I completely agree with you and I think that one of the most obvious indicators that a gambler has become addicted to gambling is that he has constant intrusive thoughts that will probably even prevent him from sleeping at times.
And of course, the same applies to betting. If a bettor has placed a wrong bet and has put a lot of money into it, then of course, he will also worry and constantly think about one thought: "what if I had done it differently?"
Everyone's thinking works the same way in gambling, because there is always the possibility of making a mistake when gambling. While a wrong bet can cause a gambler to lose a lot of money, this loss can also prevent him from making the same mistake in the future.
Gambling addiction is one thing, and thinking about correcting one's mistakes is another, and forgetting past losses is another. And this is why gamblers forget past losses so quickly, and want to start gambling again.