Can I think I am better than most people?
Are you serious? What makes you think you're better than most people?
Because I have a better IQ than most people.
It's bad to think you're better than other people due to your high IQ because it's very arrogant. Someone's intelligence doesn't determine their worth as a person. I think you should try to be more humble.
I can't do that, it's out of my nature.
Then you have to learn how to, because if you have a high IQ, then you can learn anything you want, like being humble or all other forms of emotions. A little arrogance can be good, but too much of anything is bad. What you should do is find the right balance, like meeting in the middle.