Disappointed: It didn’t work out how I wanted, and I believe the outcome was outside of my control.
Regretful: It didn’t work out how I wanted, and the outcome was caused by my decisions, actions, or failure to act.
Discouraged: I’m losing my confidence and enthusiasm about any future effort—I’m losing the motivation and confidence to persist.
Resigned: I’ve lost my confidence and enthusiasm about any future effort—I’ve lost the motivation and confidence to persist.
Frustrated: Something that feels out of my control is preventing me from achieving my desired outcome.