These types of threads to me prove that the vast majority of gamblers don't understand a couple of basic things about gambling. Starting with the OP, no matter your emotions, if you play games that have a HE you are not going to make money, if we mean do it consistently and long term. Do you know anyone famous for being a professional roulette player?
This is actually just about minimizing losses not winning. Talking about winning, it requires more consistent strategy mix with the right discipline, and it's hard to both achieve that, the reason why most gamblers are in a losing column. However, if we want to stay responsible, stay at a risk level we can, then we should ensure that we are discipline every time we gamble because getting things out of hand will surely result to regrets most of the time.
Correct, if you control your emotions, playing games with an HE, such as roulette, what will surely happen is that the money will last longer and you will have more positive sessions, although in the long term you will be a net loser.