If you have another device that is logged in, you can get a code from that one to log into your account on your new phone or other device. It is an option but it's kind of buried. There's a special link you go to.
As a solo founder in the thick of it right now, I would consider it.
Given your constraints (fulltime job, side gigs, family) it could help balance the workload, and if you find the right one, maybe offload things you don't like or aren't good at. Not to mention the comradery component and having someone to go through the difficult times with you.
I'd find the ying to your yang, so if you the technologist, find someone good at business, sales, marketing, product, etc. That's my two cents.