,,//:::
..Ç//:: relaxed and calm.
In our psychology, ...//::
Psychology is a branch of science that studies human behavior, and mentioning it as you propose in your context is like someone who practices the profession, I think there is some jargon - grammar in your idea. Or maybe it is the popular use that we give to phrases like "use your psychology."
There is something that 0t3p0t mentions, and it is the point, relax, and take it as something everyday, a few days ago I had years, seriously not weeks, years, that I not login a Casino "x", and I found $120 in the wallet, nice surprise, ready I played for a while and that's it, I know I have that money there, now.
In final conclusion, stay away from casinos if you can't handle stress, if you still can't do it, seek professional help, do therapy, prepare yourself, study the game, educate yourself, spend $100 on your well-being, the best bet you should make is to go to a specialist.