I think we all know that we need to have risk management and that we don't need to chase our losses but sometimes something just snaps in your head and you will bet crazy. The only thing that helps for me, is keeping a really low bankroll and using the vault system (but not all sites have that).
This is called tilt, I can admit that when I used to play poker and I suffered from a bad loss in which my opponent drew exactly the card they needed to beat me after I played my hand perfectly I could go into tilt mode.
However as soon as I realized this I just left as it is in those moments when you are inclined to make a major mistake, so if you feel as if you are about to lose control stop gambling immediately as those few minutes in which you cannot control yourself can be enough to lose all the money you have at the casino at the time.