i always try not to be greedy but dont know whats is the problem in my mind i become greedy always.Recetly again i won 2-3 bets consecutively in directbet and i planned to withdraw that,but my greediness increased and started betting even more,and i got the result and lost all again.

Well, your problem is quite clear, I think you have always known the answer, but you just can't face it, can't accept it and reject it. It's kinda week, man. Let's get sober and deal with it.