I've Googled this question and there is a jumble of answers out there with long articles with complicated answers, so I thought I'd ask for more personal opinions.
I learned the guitar about 13 years ago way back in high school. I played quite a bit, albeit by myself, for the next few years. I used to tab a lot of songs by myself, so my ear-training was pretty good. Then school and work got in the way and I didn't have much time for it. Now I wanna get back into it, but find myself clueless on what to play or practice. I can play some songs here and there, but it doesn't really mean much to me especially since I can't sing along.
I want to practice, but need a schedule to motivate myself. If I just randomly do a song or a scale, I don't think I'll learn much. On the other hand there's just so much to learn. Memorizing the fretboard, changing chords (I suck at barre chords, hands get cramped quickly), techniques (cannot pick very fast...), etc etc. After so many years I think I better start with the basics again, although maybe not from complete zero.
So that's my question. Your opinions are much appreciated.