IQ tests are not useful to anything other than predicting social outcome on larger groups IMHO, well that and using it for what it was intended: measuring child development against peers in the same age group.

Trust me on this, once you stop caring about it, the easier your life will be. Without anxiety and imposter syndrome feelings, you can focus on what matters.

Besides, high IQ is nothing if you do not have social skills, soft skills are just as if not more important to get things done and to be happy.