So here's a q for the seasoned (obviously) players: How do you handle a bad run?

20-30 hands is one thing but when it gets to 80-100 hands, how do you stop from loosing it? Every single combination useless. AA/KK, suited connectors, AKs/KQs; flop comes and you are staring at absolutely nothing. Is there any other strategy besides just getting up and walking out for fresh air?

How do you handle it?