What happened when you tried too hard?

Me and a friend were locked in a debate earlier regarding the difference between trying and trying too hard to do something. I believed different people had different perception on this matter, but I would like to use an illustration to explain my thoughts.

Imagine in a wushu competition where 2 participants (consider that each has the maximum fighting capabilities of 10 as example) are competing with one another. Normal humans tend to hold back some of their power and never use their full fighting capability to be in the safe zone (let us consider its 8 out of 10 fighting capability here) in order to protect themselves physically and not to overharm their opponent.

Thus, when both participants are using fighting capabilities anywhere from 1-8, they are considered fighting with one another and "trying" to win the match since they are still holding their power to protect themselves and not to over-injured their opponent. But when one participant starts to use a fighting capability between 9-10 which is out of the safe zone, they are no longer considered fighting, but its killing one another instead since they are going all out to finish off one another without any form of control or holding back.

I believed many people had heard rumours about how insane people had superior strength compared to normal people. If u wondered why, what i stated earlier does help to explain cos "insane people in most occassion never hold back and just give all out in something since they hardly or didn't control/hold back their actions at all", and this is why we could never reach the strength level of theirs since we did hold back subconsciously in whatever we do without us realizing at times.

My explanation is quite messy cos its pretty hard to explain in plain words, but what i wanted to point out is that trying to do something is as though as we are trying or trying our best to do something in a safe zone and within our own self conscious control, but trying too hard is like trying to do something using methods that are out of the safe zone, and these methods could bring negative consequences to ourselves or others in some way.

This is why human can be pretty dangerous when they no longer fear death cos they can always "try too hard" to do something which could bring harm to people as they never care about themselves!

Anyway, please bear with me as I could over imagine again. Don't forget to cite me though if you use my example to explain something related to what I said, or else you will be charged of plagarism and Dr. Goh will appear in your dream haha...