a seriousness in wanting to do something successfully

perseverance

(an instance of) rude behaviour without showing any fear, shame etc

nerve, boldness

the theory that our actions are always caused by the desire to benefit ourselves

self-centeredness

a mental illness in which a person has exaggerated ideas of her or his importance, power, wealth etc

self-centeredness

the state or degree of determination to act, continue to try believe in the ability to win

confidence, self-esteem

selfishness

egotism

a feeling of satisfaction because of what one has done, or because of a person, thing etc one is concerned with; self-respect

self-esteem