Generally speaking, setbacks can be divided into the following categories: (1) Need setbacks. That is, frustration caused by unmet needs. People have many needs in the world, which change with the change of objective conditions. But people's needs can't be fully met. Generally speaking, there are three situations, that is, some can be completely satisfied, some can be partially satisfied, and some can not be satisfied at all.
Therefore, if the required motivation meets the latter two situations on the way to the goal, it will produce frustration to varying degrees. If some people want to get further education and the leaders refuse to approve it, they will often feel depressed. (2) the action was frustrated. Refers to the frustration when the action cannot be realized. That is, in practice, people encounter obstacles on the way to their goals, which makes them impossible to achieve. (3) Frustration loss. Mainly refers to personal frustration caused by heavy losses. If you have an accident, get hurt, or miss the stock market.