Tips on losing my virginity?

I'm 16 (legal in the UK) and I'm going to be losing my virginity soon. How do I prepare myself?
I've got a few concerns. My boyfriends penis is quite big, and I don't want I to hurt, so how do I make sure I'm "loose" enough?
Also, is it a good idea to get shaved/waxed? Which one?
Shall I make sure all my legs and lady parts are bare and smooth?
Shall I wear pretty underwear for him to take off? Make myself look pretty?
Tips on losing my virginity?
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