Experience, skills tactics and tricks and of course positive thinking are the tools of winning the game. If you use this entire thing affectively and luck also favors you no doubt you will win the bet. Experienced gambler has good hands on gambling and his winning chances increases with positive thinking.
Experience can only help you not to stay above your limit and be ready to discipline yourself at all cost, and on the other hand, skill can only be applicable just to some few games and you really do not want to apply any skill on games related to dice anyway. In that case, luck is still one of the main things one should only rely on but not even too much.
The only thing that can give a gambler an edge is not even thinking they can win so much from gambling and even if they end up doing, it will help them appreciate it the more rather than end up blowing it all away into gambling all over again.
Thinking positively however in gambling will affect your emotions when things are not going the way you assume it to be in the positive lane and that can make you to start making some crazily terrible decisions if care is not taken. Positive thinking can come in, but you really also want to be careful in the decisions you are making as they can be affected by being too positive.
Thinking positively can help not only in gambling but also in every game and even in every field of life. When you know what your opponent thinking and what he wants to do, you will be able to cross him in the game and your winning chances increases with your good mind set. Dont panic during gambling and always think about winning the game.