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.
And that problem is what you need to fight against. You need to just end gambling entirely until you figure out a way to fix your problem, which makes you too greedy, and you don't know when to stop after winning. Your greed is what's controlling you, and if you ask me, I will advise you to look for something else to distract your mind and forget about gambling before the problem even gets worse.