It's unrealistic to expect to be able to play most of the songs I've covered on YouTube if
you're a beginner. I would estimate that you would need to have at least 2 years of solid
practice (2-3 hours a day most days) before you could play most of those songs accurately. I'm
not saying that you couldn't play bits and pieces at a slower tempo, but to really nail those
songs it will take some time. I learned a lot of older Metallica songs (from Kill 'Em All, Ride
The Lightning, Master of Puppets, And Justice For All albums) when I was a beginner. I got the
"easy series" tab books for these albums and learned the rhythm riffs to many of those songs.
Most of the songs aren't terribly difficult, so they're a good place to start for the aspiring
metal guitarist. As far as the songs I've covered on YouTube up to this point, these are some of
the easier ones: Trivium - Dying in Your Arms, BFMV - All These Things I Hate, BFMV - Tears
Don't Fall, BFMV - Room 409.