I'm self-taught, somewhere beyond beginner but definitely not intermediate. I listen to (and desire to eventually play) heavy metal: mostly thrash, lots of death, some stoner/doom stuff, and even some black metal. As such, of course I jumped all over learning and mastering power chords on the low E and A strings (in standard tuning). Drop D tuning of course is fun too.
But I'm in a bit of a rut. After the usual spider exercises and string skipping warm-ups, I bang out some basic progressions with a few open campfire chords (the usual open string A, C, D, E, F, & G chords, but not B which kicks my ass lol!). I do my best to practice hammer ons and pull-offs.... as well as galloping on the low E.
But most of my time practicing (that devolves into jamming) is just a near infinite number of power chords. So. Many. Power chords. Enjoyable for an afterwork stress release, but doesn't provide much in the way of "forward progress" in my guitar playing, I suspect.
TL;DNR: What can I do to get out of my rut / bad habit of my practice sessions always ending up simply being power chord mosh jams, and actually expand on things I should concentrate on to be a better metal guitarist? How can I beef up my practice sessions to challenge myself in a realistic manner?
Thank you and cheers!