If you gamble and you lose, accept it and learn from the mistakes so that in the next games you intend to play, you don't make the same mistakes again. Sometimes, the mistakes doesn't even comes from you as a player but the outcome of what happen later especially if you are this kind of gambler that loves sport betting, your outcome and what you win is not define by your selection even though you believe that but what they played after is what will give you something to win.
On the moment that you would really be that making yourself getting involved with gambling then you should really be that wise on how to take up those things realistically
and not really be that delusional on being a winner all the time because this is something that will fuel your interest on which this is not really that good in any way.