Shaving

Ok so I've tried shaving, the first time I did it (17) I only shaved a little it itched pretty bad and I scratched too much which I thought led to a yeast infection. Tried again last winter I'm 21 (been with the same guy so he knows my struggle lol) did most of it I thought pretty good but it itched soooooo bad and I got a pretty bad yeast infection. Our anniversary is coming up and I wanted to do something special but without all the extra itching lol how would I go about doing that? Not a troll question I seriously need help. I tried to go to my mom when I was younger about shaving and stuff but she doesn't even really shave her legs so yeah lol also if I go get a wax how can I prepare and what exactly do I ask for? Thanks lol