If you already used up force, achievement still bad, how should encourage oneself?
The first, achievement can show the past only, cannot represent tomorrow.
The 2nd, the mother that failure is a success, last victory is belonged to assiduous person
The 3rd, what you fail is achievement only, real failure is the failure of your volition
The 4th, from inside failure summary gives experience, to already was determined oneself, to from already courage, to already hoped oneself.

If you already did not believe oneself oneself, do not believe oneself force, so besides illusion and myth, your whats are created do not come out.