As you know that you need to stop and leave the game? How can you feel this moment. I almost always lose their money because they can't learn when to leave the game. I'm not sorry to lose. I have a lot of money not to lose, but I can't keep the winnings if I'm lucky.
I don't have that sixth sense of finding out the right time of quitting betting, but what i do is setting limits for myself that when I start playing then I set a particular limit that I should win that amount at least and when I reach that amount I stop betting and logout and then I do the same next day or whenever I am free in the whole week as I have a pretty busy schedule and I get time for gambling maximum 3 days per week. I have made quiet a lot from gambling and I also used to be just like you in the start, and just keep in mind one thing that everyone loses, you should be consistent in your wins.