I kow you have little free time but people actually watch other people develop games. It might be something you do once a week and it could essentially be a live forum experience.
I also work 40 hours a week. I also go to college, and am raising a kid. I understand the demands on your time. I am not developing a game but am slowly working on a physical bridge set up that I hope to be able to play this game on. Consoles, seating, buttons and lights dmx etc... any way what I am saying is that you should consider 1 to 4 hours a week to show off progress, talk concepts and discuss general topics like in the forum.
If you want to get an idea of what you could do you can check out the following
https://www.twitch.tv/directory/game/Creative/gamedevI would be interested in watching the process and if nothing else helping to market your channel and your game. Just let me know.