Feeling sexual feelings all the time (bugs me)?!

I'm an 18-year old female, and everyday I have these sexual urges down below the belt...if you get my drift. I masturbate like once a week or sometimes not at all, but I noticed that lately it's not good enough.. I started actually wanting penetration (srry but true), because there's just this pulsing that I feel inside of me down there..it's not just my cl*t. Plus my panties are getting extra wet for no reason...it's weird. What can I do about this? Besides have sex? Fingering gives me no pleasure whatsoever.