There's not a man alive that can't be broke. Your job, with all that mental training, that suffering, is just to push your own line of mental breaking so far back your opponent can't find it.
A good quote by MMA coach Greg Jackson. This can be applied to fighting or anything in life. Like if you want to extend your breaking point of snapping due to anger in real life. If you want to develop patience, a good way is to go on some long exercises of practicing that patience around those who can cause irritation in you. If you push your limits of endurance in whatever activity you are looking to master, it can have a very strong impact on success. That's why it's often said that training is harder than the fight, and that's a good thing.