I will suggest learning to orgasm through masturbation first. It is important to know that your clitoris is the center of sexual pleasure. Rubbing it, over it, around it and along it is the way the vast majority of women orgasm. Make sure you have enough lubricant to make this comfortable.
I hope you are comfortable with your own genitals. If not, get a mirror, a flashlight lock the door and get busy exploring. Only when you are comfortable with your own sexuality and anatomy can you help a man to pleasure you. There is nothing 'down there' that you can break.