Dave Matthews Would Be Proud

So I am playing some of my best poker in recent times in today's NLH 6-max, when I decide to hike up my skirt and ruin a good day. I wasn't hitting anything all day long, but I had built up my starting stack of 4500 to 8500 through floats and various bluffs at risk of my whole stack by using my image and reads to perfection. Then in one hand, I don't go with my initial instinct (which would have been to make a huge correct call for my tournament life), and instead of having 17-18k, I was left with 4600. Soon after I ran 77 into KK.