A smart gambler does this automatically.
No one can be sharp constantly - the mind needs rest.
The mind is a muscle - some people are better than others and can go longer and further without resting - but ultimately everyone’s performance diminishes if they don’t stop and allow the muscle to rest/rebuild and strengthen.
It’s when you push too long that you do dumb things - you second guess and make foolish choices. Stay sharp - step away from gambling from time to time and do things that exercise your mind in other ways. For me - it is usually just a day out in the woods or out on the water. No internet - no gambling - no contact with anyone. Re center yourself and find zen - then attack gambling.