Of course, I blame myself, who is to blame for my actions if not me? When it comes to gambling, it's the same, but I deal with it... I know that I hoped for the best before making any bet/spin/roll/call, but it's not just me, we always need that luck to succeed.
One where you held yourself fully accountable, regretted it deeply, and promised, ‘Never again’?
I have probably said "Never again" a zillion times. I will never play a certain provider or a certain slot again, I will never do this or that again... after a while, I come back and try again. Making a break is always a good choice, whether we lose or win. It's good to cool your head after both.