IMO, emotional conditions when gambling greatly affect mentality... we must have felt bad emotions or moods when gambling, and when we lose, it really destroys our mentality and when we win, maybe our emotions are not very good...
It's different when we gamble when our mood or emotions are good... when the results are bad, it won't make our mentality down immediately, even our mood is still good, and when we win... there we are very happy...
The best mood is when we are happy to do anything, including that because there is no pressure whatsoever, so we can be more comfortable in doing any activity including gambling...