Virgin Here.

I've never had sex and I'd like to but my nf and I are both virgins and have NO idea what we are doing. Also my twin sister has had a little more experience than me and according to her, we are the kind of women that will need lube. What I need help with is how to try and help myself prepare. I don't finger myself. I only rub myself. I've never orgasmed. I've been eaten out several times but only fingered about twice. I barely know what I'm like down there.... Nees advice on how to get things started!! My bf and I are clueless!