My worst run of cards was 0 for 80 hands at a 6 person table. I never hit a thing.
A really hot session sees me winning 30% of hands dealt, not just played , for about an hour. Oddly enough, these statistics have almost no correlation with the amount of money won or lost. I've won 30% of hands and been about even, and other times my $25 original stake now sits at $120. The difference is "lady luck" in my opinion. Your opponents must be dealt good second best hands in order for your top hands to make any money. We have all won $1.20 with a full boat on the flop, because nobody else got anything.
I hope this helps.