As a not too experienced Head-Fi.er my feedback is mostly on the musiclistening.
If you have to ability, try to pick up and play a guitar, or bass or any other instrument of choice you probably should, I think that me just learning the basics of electric and aucustic guitar made me enjoy my music a lot more. It's a bit hard to explain, you just become more aware of the instruments and therefore you enjoy it a lot more.
And trust me, you don't have to become good at it. I could probably qualify for the worst player in the world, during the 5 years I've had my guitar I doubt there has come out a single clean tone
Onwards to the actual listening, a lot of more mainstream "rock" genres the drums tend to take the role of just setting the rythm. This is a trap I fell into. Beginning to listening to more and more progressive music (well, this was somewhere around 5 years ago, when I picked up my guitar) I realised that especially drums has so much more to give than just being a backgrund rythm. About the same argument can be made with the bass guitar. Focusing on those parts in the songs altered my whole listening experience, and made me really engage in all of the noices coming out of my speakers/headphones. Not only the guitar and vocals which I primaraly focused on before.
What I would like to say with that is that is, try to sit down and listen to the drums or base, or any other of the more discrete instruments (Would heavily like to recommend Dave Matthews Band or Porcupine Tree for the drums) and you will probably see music with new eyes coming out of it.
Finally, I have also kind of realised that taste in music is a thing that develops over time, as you develop as a person. I don't think you can or indeed should try to change your music habits too much. It's a matter of being yourself and forcing stuff you don't want to listen to down your own throat because you want to be someone else is not a good way to go about it. (well, this sounded a bit patronising, and maybe not a discussion for this forum, but anyway)