Yeah, I've lost almost 40 BB tonight... I'm taking a short break as I tilted. It all started with getting a set with AA and then a full house AAATT, to lose to quad TT. You have to be careful. Shortly after that I got killed again with a mistake of hitting raise instead of fold (R and F on the keyboard are next to eachother) on K2o, only to see that I paired my king. I decided to hold on it stupidly and lost to AK of course! That's what started all the tilting.
Anyways, those stupid mistakes cost you, and you start playing hands you wouldn't normally play and you start to chase.. hense the term fish.
Take a break, read a book on poker, and start over in a few days. Im gonna play some video games and re-read my poker book for disipline.