If you accomplish producing good music by playing what sounds right then your doing the right thing. For tips, there's a whole section on this website with tips and tricks from guitarists all around the world. Check out the Host section, those guys know there stuff and they share it freely. Just look for a host that fits your style. I'm sure you'll learn alot. If you have any questions, then just come here. Everyone is pretty cool about helping others out.
"My whole life is a dark room...ONE BIG DARK ROOM" - a.f.i.