bad mistake

my shift tonight got cut and I went to the casino... for some silly reason I thought it would be ok. well it very nearly was a disaster. I started fine just playing low stakes poker with some money that wasn't a big deal, well after many really bad beats I got angry, and when I get angry bad things happen... I started playing with money I couldn't afford, and then played with even more money that would have made my life a living hell. I started trying all the different table games and it just kept getting worse!!
well, somehow, miraculously things turned around and I manged to almost get most of it back but did I leave, no! I kept playing and playing, not satisfied with being almost even, knowing I was still risking my life and my happiness with every bet but still I didn't want to come all the way back from such a big hole just to break even... well I managed to get out of there without any more disasters, but not before I felt physically ill from stress and hunger and thirst - literally I had nothing to drink the whole time and I was so thirsty and my legs and back hurt from standing at the table. Just horrible, and I was  so clearly sucked in and powerless to do anything but keep betting. Its disgusting and scary!
I need constant reminders that just setting foot in there, no matter how safe I think I will be - leaving my cards at home etc, it never works - once I start I am powerless. I need to be very afraid, and I need to remind myself constantly of tonight, and how bad it could have been :(