Congratulations, and good luck!
Now, please do not post a picstory of the unwrapping. Especially do not post pictures of the knife that was used to cut open the... yeah, no, just no picstory, okay?
Edit: Shit, ninja'ed.
You have to fairly often TRY to play something way beyond a speed you can play it at to actually even start learning it. Uses a completely different set of muscles for me to play 16ths at 120 and 16ths at 180+.
That being said, don't perform or record something you can't play cleanly at the...
Stop playing guitar for at least two weeks. I'm serious. See what happens after that. But don't take chances, I continued to play through some pain/numbness several years ago and I still have horrible endurance on the instrument now.
Paul Gilbert doesn't actually alternate pick everything, he alternates(pun intended) between picking and legato. He's a good guitarist, but I wouldn't recommend listening to him on sweeping etc. There's nothing wrong with economy picking, but you really do need the metronome. Play scales with...