There are several tracks of learning musical instruments, at least the way I see it. Learn to play other people's stuff for fun solo, compose and record your own stuff, or jam with a group of buddies.

I'll be honest I never got into playing other people's music but composed in the past. That was nice because you had absolute control but it also limited the creative input and stunted my own growth in music theory that becomes a must when jamming.

This past year I've played more than maybe my entire life with jamming with family. It has been by far the most fun. We just make up our own simple shit and grow together.