I have lost a ton gambling, but I don't know when I try to gamble. When I win, I try to be greedy and win more. But I end up losing everything. Its been going on for a while and I think I have a problem.
You already knows what the problem is, and if you have acknowledged the cause of your problem, you can start fixing it from there. Normally, most gamblers lose more that they win but if you can not control your greed, you will not even have any benefit from the process of gambling, like you said, even if you win, you still continue gambling and that can cause you to lose the money you previously won. So, it's better you learn how to control your level of greed.