Shoulda got your kit on at cadwell firefly - but you know that already!
(Can't believe I just told a chick to get her kit ON!!)
Seriously, I don't think the venue matters, just start in the novice group and you'll have no trouble. There's absolutely no pressure to go faster than you're comfy with.
Just a word of warning though..... make sure you can afford to do lots more - cos they're so addictive!