I don't know why but I always get a feeling to gamble, after then losing my money, I quit for some time and then continue, but I know I will lose my btc

Why is it so addictive?
The euphoria that it gives the brain when you win. It's something that you crave. The feeling of winning. Or the chance of winning. I mean just imagining yourself winning a very huge amount gives you enough stimulus to gamble, Gamble everything at some point for a small chance of winning.
Yes they think that you can win indeed. But you lose always more money and that is very bad. They must know that gambling is very bad to do.
And of course it is fun to do. But you need to have borders for yourself. Otherwise you will get poor and that is not good.
The aim and hope to win at this time make people more and more addictive towards it, and so the winner and loser both do not leave it . The winner play because he know he will win and the loser tries to recover his lost money.