Hi WJHR,
My guess is that you're feeling the "pressure" of blending in with
your peers, to experience whatever they're experiencing, &
having 1 just to be able to say, "I have a GF". But this isn't a
good reason to have a GF.
True, during your teenage/younger days, it's an experimental time.
With a few gfs under your belt, you'll eventually know what it is
you want in a woman whom you'll eventually settle down with.
However, there's still such a thing as "Puppy Love", which should
be the basis of your getting a gf (IF you do get any) now.
Just because some other people have partners doesn't mean you
should have 1, some people don't start until they're 21, & boy
do they make up for lost time then
I'm serious, I happen to know of 1 guy
who's making up for lost time by cheating on his current gf like
mad 
Still, have fun during your younger days. There's plenty of time
for you to experience BGR, why take the fun & happiness out of
it by letting yourself be pressured?
FeowFeow