Better to use rationality and control yourself than to deal with deep regret later
unless you win out of luck, then there won't be regrets but you'll have to fix bad habits later on on the road
We know it's hard to control our feelings but when we are gambling we must not loose control because our funds are at stake so we should have some limits as in emotional state we don't have control over our mind.But sometimes we learn from our past experiences and whether we are lucky or not we should not loose hope playing in our limits.