I quit my job 13 years ago
It's amazing how much I find myself in your story. I am too in same shoes, working at a startup and I'm so burned out that i have neglected all of my side projects due to lack of energy or modivation. I havent quit yet, but every 6 months i go through re-evaluation of where I am and where I want to go. For now until the end of year, I keep pushing hard at work hoping for the best.