I would loooooove to help you. I've only been playing VGC for like three months but it's soooo much more exciting to me than singles. (Quite addicting, actually XD) Switching is less important and team synergy much more important. You should definitely try to go, tho- just because it will probably be an amazing experience, even if you don't make it too far- I'm much more excited about spending a weekend with the smogoners I talk to on IRC every day than I am with getting top 16 at nationals.
But yeah, I'm on IRC all the time if you ever wanna chat it up there. If not, VMs/PMs on here can suffice. =D