Hi,
You need to use a lubricant, The clitoris feels wonderful to rub but it you are not careful to keep it lubricated you will not realize until later just how sore you have made yourself. While many women use their vaginal lubricants to masturbate with I suggest you use a bit of oil - nothing fancy needed a little Olive oil works just fine.
I also suggest if possible you begin playing with yourself in front of a mirror either a full length or a mirror you can place against a wall at floor level then you lay on the floor with your legs apart and raised so you can get your private areas as close as possible to the mirror. This way you can see just what you are rubbing and what places feel best. I also suggest that you may want to trim or shave your public hair completely - once again so you can see exactly what you are doing.
Start with your nipples, apply some oil and gentle run your whole breasts until your nipples harden and then work the nipples, try pinching, pulling and twisting them. the nipples tend ot be a direct hot line to arousal so play with them for some minutes before moving between your legs.
Rub oil over you whole vulva including your mound, labia and anal opening. Watching in the mirror gentle pull your inner labia open and examine your pink inner opening and if you pull back on the clitoral hood you can expose your clitoris. Begin by gentle rubbing of your labia taking each fond between your fingers and sliding your fingers up and down the length of your labia. If you notice you are getting wet with your lubricants this is a normal sign of arousal.
You can if you wish insert a finger vaginally - even as a virgin a finger should easily slide inside you vagina. Press back up under your pubic bone from the inside for maximal sensations. You may also note the vagina is filled with tiny ridges these allow it to expand to accommodate any size penis and the folds provide extra please for the man as they caress his organ.
Your anus is richly supplied with pleasure sensations and you should ry some light and some firm strokes, you can if you wish insert a oiled finger inside - no - do not worry the lower anal passage is virtually stool free except during deification
Finally to the clitoris. Most women find slightly indirect stimulation best rubbing in circles about or around the clitoris. As a basi rule of thumb try to avoid directly rubbing your clitoris until the sensations are so insistent that the urge for touch there becomes nearly overwhelming. then direct rubbing should bring you to orgasm
Feel free to email for further information