A mother here, of a 21 month old. My advice (and this is coming from a mother): don’t sell. Hang on to what you have, unless you need to sell it for financial reasons. From what I’ve seen, you’ll be able to come back to it at some point, and you may be able to get your children involved.
Learn to value the music time that you have and think about investing in something small, portable and battery operated so that when you DO have even 20 minutes, you can either sit down and make a sound or a song (depending on what you prefer). After being involved with this stuff for over 20 years, I realized that I like sound designing way more than making songs. So I spend the previous little time I have accordingly. Learn that about yourself and you’ll be able to maximize what little time you have (and will have).
And congrats. We’re thinking about adding another module to the mix too.