I can only orgasm by rubbing around my vulva but not my clit

If you are scared to rub your clit (which will most likely give you much more pleasure than just rubbing the outside of your vagina, the lips I'm guessing is what you are talking about). Get turned on, maybe by watching porn or whatever turns you on and once you feel comfortable dip your hand in water and just slowly start rubbing your clit. Then gradually go faster, when going faster you tend to orgasm quicker and more intense. So definitely try that

Watching porn is not the way to get turned on as it can then lead to more problems later in life with getting sexually aroused with a partner! The best way to get sexually aroused (turned on) is to use your imagination the most powerful tool you can use or to read an erotic story.