I thought about starting my own thread, but this seems more appropriate... This is after my first 60ish days, so as been said before, feel free to close your eyes, stick your fingers in your ears, and hum. (I don't know how much of this is NEW or just reiterations but here goes)
Learn from as many sources as you can. I'm currently taking nuggets of info from the lessons here, David Hodges' wonderful book, and another site called Guitar-in-a-Nutshell. There have been tons of times I just can't get something from the way it was explained on one site, but when I looked at my other references it was clear as a bell. Learning the mute/chord change upstroke in 'Lesson #24 Hurt' has helped my chord changes when I play the version of 'Runaway Train' that I got from GIAN
Be your own harshest critic. This does NOT mean to be down on yourself because you can't play lead like Knopfler or even make that C to G change in time, but always push yourself to be the best you can be.
Take your guitar to a pro to be set up When I started playing I was getting horrible fret buzz. I was convinced that it was a poor set-up and blamed all my ills on my awful instrument. Turns out, after a visit to GC, that it wasn't the guitar it was me. I was just making beginner mistakes. (Alternate title for this bullet, "It's not the guitar, it's you") And if it IS the guitar, with a good set-up now you have no excuse
Read through this forum Front to back, top to bottom. I couldn't believe it, but EVERY possible question you can think of or problem you encounter has been addressed (usually at length) by the Guitar Gods that inhabit this place