Even if you are smart you have to work. And the work isn't necessarily funnier than the "stupid" work that almost anybody can do. I still think I liked my time at construction yard more than my time in front of computer screens. But I do this to be able to pay my bills. There are many counter arguments to the point that smart people are less happy because of what their jobs but I still wanted to say, "better" job is not always happier. Disclaimer, construction workers are smart but there are entry level jobs where smarts is not needed.
Cont.
I was always somebody who does well in school and thinks he is smart. But I had some situations that gave me a lesson. E.g. when I was younger I got to know some people who were kind of fun to spend time with but I thought they are a bit crazy, not smart. At some point I noticed, well, they seem to be doing better than I, in fact. They have a nice job, they have friends, they have a comfy apartment, they seem happy. I was a poor technical student in university who was struggling with studies and life, and not finding a great job. So I thought, "I think I'm smart but what use is my smarts if the dumb ones are doing better?" I developed this mindset of forgetting smarts and not categorizing people with that so much. And don't be proud of your smarts, instead show what valuable skills you have.