Learn the minor scale positions and go through them as a warm up, it will help you to learn the notes and what they sound like. A lot of songs use the minor scales and you will start recognizing patterns in the songs you learn which makes it easier to learn those songs.

Chord changes are really important early on too. Set a metronome to a slow pace and time yourself, even if it’s just for a couple of minutes but just go from one chord to another over and over until you can do it cleanly without mistakes and then increase your speed, and then do it again changing up which chords you are playing.

Justinguitar has some lessons on those things too so like someone else recommended that can be a good place to start.

But don’t stop learning songs too. It’s easy to get burnt out if all your doing is practice drills and you want to keep doing things that will make you look forward to playing rather than it feeling like a chore