Welcome Sam I can identify a little - unlike you, I've always been into cars, but the Z is my first real performance car (my last two cars having been a Civic and a Mini Cooper S) and I'm still apprehensive at times, it still feels massive when driving and parking, but you'll get used to it
That's what a forum is for - to share knowledge, so I wouldn't worry about asking silly questions, and the search button is a very handy tool