You might fall into something that may lead you to lose a lot and suffer with big regrets when losing huge amount.
That is normal if a gambler thinks like that because his minds can tells many things about gambling especially telling that we can win in the next rounds. But if we can control our emotion better, we will not trigger and deposit more money because we know that can only gives more losses to us.
We will not use more money to playing gambling especially if we already lose in the previous rounds. We must keep take care of ourselves from the big lose because that will comfortable to us.
When you can not control yourself, that will be the time for you to see the reality on gambling and you will regret when you realize you already lose more losses.
Indeed, though it's a hard lesson to overcome after realizing such mistakes but you need to push yourself not to continue and to lose more, it's always better to have that kind of control inside you to prevent losing your hard earned money, if you just wish to enjoy then stick with yourself with your plan of using spare money and not to feel the pressure when you been rush by your emotion to keep adding up with your bankroll.