Answer: Relative deprivation principle
Explanation: It is a principle that leads to a feeling of frustration due to the feeling of relative deprivation. So the feeling of relative deprivation gives us the impression that we are deprived something when we compare ourselves to others. Because of this, we may feel that in some ways we are worse than others, which in fact leads to frustration. According to psychologists, this is not so rare in humans, on the contrary, you don't have to worry about it because it's a normal feeling in humans. This sense of relative deprivation may also be the result of our perception, so it may not be based on real facts, although it is possible, but in any case it is not uncommon.