What helped me with my inferiority complex was realizing everyone else only appears to be competent and is blinded and overwhelmed by the simplest things.
For me it is kind of normal to skim through a manual or a documentation to understand what I'm working with. Nobody seems to do this. It made me outstanding in many cases, a true magician.
I don't think I'm very smart, but I'm often refered to as "the expert".
At one point you suddenly realize everyone is just doing the bare minimum und tries to get through whatever project with the least amount of resistance. Their scope is usually what is in front of them and what they are working on. Basics are quickly forgotten and what you can set up in day puzzles others for months.
It is so easy to be useful, just stick to your ability and expand them slowly. Everything is a process and everyone is struggling at first. Accept this and try to help with much care. Just installing some driver, writing a parser for MS Excel or other things that seem so simple or redundant are of great help to others. You be amazed what little skill you need to be "the expert". Mostly passion, interest and embracing the struggle on your own feet.
There is no top of society. You can choose to be helpful or be a dick who orders people around and laughs at their misery, when they struggle with the simple things.
We all stress out so easily and the hurdles we need to overcome are extremely difficult, until they are somehow not. You won't believe it, some people struggle to set up some IDE for a few days and then produce the most amazing code.
Live in the space, where you can explain the obvious. For most the obvious can not be explained and you are an idiot for asking. The former makes you "the expert", the latter makes you unbearable.