I suspect you're worth much more than you're telling yourself if you're carrying your team. There's lots of good advice in this thread about how to proceed if t

I suspect you're worth much more than you're telling yourself if you're carrying your team. There's lots of good advice in this thread about how to proceed if that's the case (which is 90% probable). But, I guess there's a chance you're not, and you're getting by at the startup via long hours and keeping your job because of low pay. I doubt it, but it's possible. If that's the case, and you're cool with just making a living, consider a move to civil service or university IT. If you can sustain being a sole dev in a startup, you'll be a rockstar in that environment and you'll be able to cut down to 35-40h weeks. Start exploring what makes you feel something - rock climbing, knitting, metalwork, writing sci-fi, hang gliding, cooking, whatever. If your work isn't your joy or your Born Avocation, use it to feed yourself and go start living. This would be a legitimate choice even if you're much better than you're currently telling yourself. Hospitals need IT people too.