I don’t like the way this question is framed. It implies that IQ is a meaningful indicator of intelligence as well as that intelligence can be generalized and measured accurately. In truth, it can’t.

While there exists a certain correlation between measured IQ and academic success, these things can always explained via different factors as well, for instance the amount care that your parents put into how well you do academicallg early on in life, shaping your values, beliefs and personality. Someone whose parents put effort into making sure they did well at school will probably also care more for taking such an IQ test seriously as well as have academic success. Do note, that there is only little correlation between IQ and later levels of income in their line of work.

To go back to the actual question, you cope with it by realizing that intelligence is a diverse and complex concept, where different people do well on different things. While you might certainly have a domain where you are objectively “better” at than someone else (measured in some way), this does not mean you are objectively better at every domain. By realizing these personal strengths and personal weaknesses we can overcome them by working in a field where we are best at and learn from others at fields they are better at in order to become a better person all around.

Humble yourself and never forget that your own personal experience shouldn’t be the gold standard for everyone else. They have their own values and beliefs backed up by their own experience.