Answer: Frustration
Explanation: Frustration could be explained as a condition of mental or psychological worry resulting being unable to achieve or attain a certain target or goal especially after the individual must have put in so much effort in other to make such accomplishment. Frustration may be related to annoyance, failure, anger, disappointment and other social or emotional factors which could impede an individual from reaching a certain target, goal or milestone. Frustration could manifest in an individual in the form of emotional or psychological stress or weakness or physically by weeping or feeling uneasy.