Try your best

This is the number 1 rule that we all first learnt, but the interpretation varies among different people.

To me, I am taking it damn serious,so serious that, the "best" I interpret means I should try with all my might, squeezing the very last bit of energy out of what I have.

This is tiring, very damn tiring.

I didn't realize this is wrong, until I found that I will die if I keep on squeezing but still cannot archive what is needed.

So, what's the best one can do?

Take away the time that should't be sacrificed - sleep, eat, rest, etc. The remaining is the time that you can optimized.

I gotta freeze and stick with this baseline, or else, I will be crushed in any time.