I have tried to think what goes through my mind when ever I am trying to place a bet. I think something strange do happen to me and that is I always have this thinking that what if I lose, how am I going to feel! I have never want to lose in my mind I want to win always but I think this is impossible. Gamblers here did you always want to win all your bet? If you win all how will the gambling company makes profits?
It is difficult for you to set your mind because i feel you have fear of loss that the reason you are worried about it and don't concentrate on your betting. First thing only start this game where you are skillful and start it and only concentrate on it that what you are doing. It is not strange do happen to us, It is normal attitude of human being that we have no total control on our mindset, so same happen with gamblers. But we can try to do it.
Even if he plays with no fear, what difference would that make on outcome? Calming oneself before the game and not thinking about the failure has its own pros and cons. First of all, having no fear of loss means that he would bet more than he should as fear stops a person from pushing limits. Moreover, he can focus on the game of gambling but there is nothing much to do, for winning in gambling does not demand any skillset. Better to be afraid of becoming poor.