Personally, I have only worked solo along with full time responsibilities as well and its discouraging to know what could have been if you had a free life lol. At the same time it is oddly motivating to work a little bit on your free time here and there and still turn out a completed project. This repeating game jam is designed to lift everyone entering so when they leave, they have some new skills and confidence
If you would like to try out a team, why not take a look at the help wanted section and see if you could find someone useful to your skills or maybe post there requesting exactly what you are looking for.
You may be surprised at what you could accomplish. If you take a look at my profile, those two games were made in 3 and 4 days with very little free time. I just kept it simple and set up an organized Trello board ( I will make quick tutorial if you guys want) and just start checking things off as fast as possible.