Depends on how much is present on my account in a single instance. Most of the time, I'm confident on my picks and go ballsy and place a 1 btc bet only to win afterwards. I've lost 0.6 once on MLB betting. It was Rangers vs Yankees. I couldn't care less though, because 0.6 is kind of big, but after a short while I got by with it and accepted it.
Being too confident in gambling costs a lot sometimes, when your confidence snatches all your bitcoins at once then you realize that you were over confidence and that is the reason why you lost everything you had in your account.
Confidence + Greediness will put yourself in nothing and rather it will just let you lose your coins everytime you gamble. The best thing you can do is set a plan and manage to follow that plan that you think is good for you.