Ask HN: advice for someone losing motivation

I am a self-taught developer, creating software is my passion and I strive to progress in it. My current workplace has brilliant people, but they're not heard and most of them leave after a while. I want to feel like I'm contributing to something but lately I feel my talents are wasted. I heard around here that if you are the smartest one in a room, you are in the wrong room. While I'm not the smartest one around, everyone's undermined to fit as the next replaceable wheel. I'm not there only for the paycheck, but also for the products, human interactions and to learn. It seems I care too much for such a place. There are some people I am still learning from, but the longer I work there, the worse my motivation to do anything in general. I think I'll simply resign and take some time for me far from this overtime filled place... Then, maybe I'll try going to university(Stanford, MIT ?) in hopes of doing research or I'll simply look for another job which does not care about me not having a decree. I don't know what to ask... but I'd appreciate some input