How to orgasm?

So I'm 20 and a virgin. I dont masturbate that often and I've never gotten myself to orgasm. But last night I was playing with my clit and really into it and I think I was close to an orgasm 4 time bec my body just got really tense, I got a rush of hot and cold, my body was shaking and I had to moan and I'm usually quiet as a mouse when I masturbate.

Is that was it feels like when you're close? How do I push past that to actually finish??