Why am i so stupid? why do i ume too often and make illogical conclusions?

To be honest. It happens to just about everyone. I'm the same way i have a 4.0 gpa in hs and all that ****, but everyone has there little flaws about them your's just happens to be you overthink situations and make them out worse then they are. I can't really get out what im meaning to say.. Idk if i helped or not but i gave it a shot, just learn to relax, take things easy and when you overthnk things just think everyone does it and itll all be good