First time!!

So I’m with this really great guy, he’s so respectful and kind. I told him that I am still a virgin (im 17) and I want to wait until I’m 18 to have sex. Well I’m almost 18 now and I’ve been to nervous and embarrassed to ask anybody, or him, but should I shave down there before?? I tried to shave once and it wasn’t very nice, I have no idea how to do it correctly! It turned out still very prickly and I was to scared to cut myself so I didn’t go all the way down. 😖