I have no need of belief in gods,demons, the tooth fairy,Elvis lives etc but I do understand the difference between being convinced of'x'and merely having a belief. No need to disprove gods,when there is zero evidence,but the actions of religionists show beyond doubt they are the dumbest people on the planet,which kind of backs up the lack of evidence. They just shriek and bleat and fail miserably to prove their gods-and after that they still don't use reason!
Then what was the point of your earlier remark? At first blush it looked to me like you were equating the two.
As everyone says it happens to all of us. You can't look upon one day's result but look at the result's from the whole last month. If they are good, don't even think about that same days are not so green. (at least they are not red, right? )
My advice is when you have a day like that to simply step away from the platform for a bit. And by a bit I mean a few hours to a few days if necessary. Clear your head, then go back to it and figure out what went wrong.