Fingering

Hi...my boyfriend wants to finger me and I kinda want him to also but I've never been fingered before and I'm self conscious about down there and idk what to do exactly when it happens and he wants me to give him a blow job and idk what to do I mean I want to but I've never done that before either, can someone give me some tips on this stuff plz oh and how can I not get razor bumps from shaving down their