I want to know how to finger myself

It's rather simple.  Do you know where your clit is?  It's located on the outside of your vagina, just above the opening nestled inside of the flaps a hard little bud that gets super sensitive when stimulated and gives you intense pleasure feelings.  Keep it moist with your saliva for extra sensitive feelings and more pleasure.  Rub it fast, slow, in circles, pinch it, tweak it do whatever you need to the more you experiement the more you will get to know your body and what you like and how you like it.  Also, a position I personally like to masturbate in is with one foot up on the bed with your vagina wide open and your clit right there, OMG it feels so awesome!  If you ever or when you ever have a partner, and they perform oral on you and in that position - you are in for a treat my dear, oh yes.  Enjoy and have fun, I hope this helps