noun

a loss of confidence or enthusiasm; dispiritedness.

do not give in to discouragement

dispiritedness,downheartedness,dejection,depression,demoralization,disappointment,despondency,hopelessness,lack of enthusiasm,lack of confidence,pessimism,despair,gloom,gloominess,low spirits,cold feet,deterrent,disincentive,hindrance,obstacle,impediment,barrier,curb,check,damper,restraint,constraint,restriction,dissuasion,put-down,damp