24 years old with a very low drive?

Is it normal for a 24 y/o woman to be un-motivated by ? I never knew much about it when I was a teenager and was never ually active as one. Nor was I wanting to be. Nothing traumatic has ever happened (that I know of) when I was a kid either. The only thing is my best friend all thru high school was REALLY permiscuous, and she always told me in detail of what she and these various guys would do to each other...that may have freaked me out a bit. She also stabbed me in the back out of the blue and decided she didn't want to be friends anymore. Was that traumatic enough? Or was I just pre-wired to have a low drive? By the way, drinking does make a big difference....then I'm a whole nother person! So does anyone have any advice for me?