I think you're right. Some people always lose in gambling because they don't have plan. just play, play, bet, bet. If they lose, bet twice
so they can take back what they lost and then after that the money will be gone so fast. Because Winning in gambling is instant and of course you be will lose quickly too. I know gambling it's very easy to win or get money but you should know how to control yourself, control your emotions.

Mindset is very important and powerful when it comes to gambling don't be too greedy
and think wisely and carefully. Always set limitation for yourself