For me not being focused on finishing anything is what got me back into playing music (and eventually performing live sets).
Previously there was so much pressure to produce end results I couldn't even get started and lost all joy in the process. At some point I got some hardware to just play with and never really looked up how to save anything (was a Drumbrute, Meeblip and I borrowed a Beatstep). Was making odd acid tracks and silly sketches on my kitchen table every night that I'd lose as soon as I turned it all off. It was oddly freeing, and really fun.
A year later I was playing out gigs ranging from 20 mins to 3 hours. And one could even argue that I've still not finished any songs despite hours of recordings and performance as it's mostly improvisational.
Now I'm happily back in the noodling around and having fun stage again and loving it (though about to switch gears again).
Anyway - just figured I'd weigh in as there's often a lot of pressure to finish or record things when just playing around or building weird synths is in and of itself a really really fun (if expensive) hobby and maybe someone needs to hear that. :)
(also perfectly fine if your focus is on complete songs, of course)