Risk is part of the game, coming close to an important victory or losing it by a hair's breadth is a risk you can't ignore.
It's called gambling, you risk a bet and at most the only thing to do for a few days is not to bet anything,
the time to assimilate the loss and psychologically you've calmed down.
There are no magic wands or useful advice in these things, simply keep calm and think: tomorrow will be better!
The problem with a lot of gamblers is that they only think about the possibility of winning forgetting that gambling is actually a risk...Every amount of money you stake means that you are ready to lose it , that's what staking is all about..this isn't an investment that you can say that profit is guaranteed...The main reason why most gamblers lose more is because they lack the ability to stop and try another day