Easy to feel cocky and start, hard to keep going and finish.
So is the idea just to fuck yourself for your next session, so you then have a shit session and get pissed off, and so get used to being pissed off
To be honest the idea is to choose the finisher according to the session I've done and possibly to the session I'm going to have the next day, as I tried to explain in the first post.
This sounds more applicable to the bodybuilding "legs day"/ "back day" style of training rather than one that allows you to go climbing.
So, it's not a matter of what you can do, but of the intensity of what you do.