Let me give you an advice. If you want many won games but which can also be mixed with losses, you should go for low odds. I guess you have been going for high odds and you think you could have later won it after several attempts. But the game was later against you which was leading to several losses. Also stop thinking that martingale strategy can help you while gambling. It might not help you at all and if it fails it will lead to bigger losses. Do not see gambling as a way of making money because it is risky and house edge is there which makes gamblers to have more chance to lose than win.