Is patience the key?

I'm about to start playing a lot of MTT after reading through Dan Harrington's two excellent NL Hold'em Tournament books a few times.

I'm sure you can undergo slumps with coin flips and bad beats near the bubble.

Is patience the thing you have to tell yourself to be a succesful MTT?

When do you start to panic and say, "maybe I'm not made for this?" if you miss cashing 10 straight times.

Just looking for some insight as I switch from cash games to tournies.