And when we start playing for money, building complex strategies for winning of course, this can work, but then there is a high probability in case of loss to try to win back everything invested, and then the stakes begin to rise, which can lead to even greater losses. A fixed amount for the game and a more relaxed attitude is the secret of self-control.
When a gambler is playing for the sake of profit making forcefully, it becomes very easy to get addicted too because the person wants to make profit by every means and they can even lose self control on the process and like you said, trying to win back what has been lost is also another factor that will contribute to the addition. Another thing that builds self control is not being too bent on profit making.