See what the evaluation criteria are. Compare with others or with yourself.
(1) If you compare with others, there are objective standards. For example, if you compare with your peers, you can go to the hospital to see your intellectual development. Less than 18 years old, intelligence below 70 points, may be mentally retarded. This needs to be judged by a professional hospital. It is recommended to go to a professional psychological hospital.
(2) If compared with ourselves, we only need to be better than ourselves yesterday. Today you are smarter and happier than yesterday. When we are making progress, we are also making progress.
Some suggestions:
1. Read more books suitable for your age, your thinking comprehension will come up, and your expression ability will be improved.
2. You can try to write your own feelings or thoughts, such as QQ space, WeChat, Weibo and diary, which can be written to yourself or shared.
If you are sensitive to inferiority complex, it is suggested to learn something you like very much. If you learn yourself well in this field, we will have a sense of superiority.