Whether you drink water or have a coffee is secondary, first thing is to take a break. When you're on the losing streak it is really hard to make a have control, because the mind will loss its temper and goes for higher bet. By the time we'll have a mind, we need to win what is being lost or loss everything. So gambling happens in an out-of-control manner.
It is a bad idea to try to recover a loss during the game section and that is the fastest way to lose more money since hitting the wrong g strings always prompt for more bets which will still lead to potential loss and this is not a good way to play.
I accept with your idea of always taking a break from playing, anytime we see ourselves hitting the strings in the wrong direction, and in other to escape the emotional attempt and demand to recover the loss we need to set a stop to bet timer this can self-activated