I had a few major losses in the past Greek Super League that were quite painful. However, I can't keep dwelling on the past, and move forward pretty quick. Depending on the amount of the bet, I'm usually pissed off from a few minutes, to a few hours at most. It's safe to claim that by the start of the following day, I barely mention it and it doesn't affect me, I continue my day without allowing it to bother me. If it's something that bothers you, you either cannot stand the weight of gambling or you're risking more money than you can afford to lose.