18 isn’t too young and being a virgin doesn’t matter.
Forget looking for a Master for now though and concentrate on finding yourself.
Read, research, attend some munches, make some friends, blog.
Find out what excites you, the specifics, not just the grey haze of lust, but what about a particular fantasy actually gets you off?
Find your limits, and don’t worry if it’s a huge list at first, as you can always cross things off later on down the road.
Once you have an idea of what you like, don’t like, and what your looking for, then you can keep an eye out for a partner.
Without that knowledge, it’s like walking to the party without a shred of clothing on. Vulnerable, unprepared, and nervous.