Why do people say I am smart, but I feel stupid?

Then think back to what you have done to show your talents, such as (just for example) saying that playing games is very powerful and there are many tricks. These may be smart.

People often say that I am smart, but in fact I am slower than others in my class ... but I am smart, and this is a smart place. According to my situation, you don't listen in class, probably because you don't want to listen in your heart.

Ever heard of ADHD? If you don't sit in the right place, just make a metaphor: this group of people is very inattentive and not good at learning, but their IQ is normal or even higher.

There is no indicator of whether a person is smart, including the IQ level mentioned above.

One way not to take a nap in class is to go to bed early.

Please sit in the front.

Wash your face when you are tired. The teacher put a towel+water on the table without washing his face.

The mentality can only be adjusted by yourself.