You've just gotta jump right in, Ms. Emma!
If you're already knitting in the round, there are only three other "difficult" parts to making a sock - and two of them are actually not hard at all:
1) Turning the heel (not that hard!). Once you get to the heel, you have to work short rows to form the little "cup" for your heel. The pattern instructions always tell you exactly what to do - you can't over think it, just turn the work when the pattern says
2) Knitting the instep. I actually find this to be the trickiest part because I don't like picking up stitches. That said, I'm not too much of a perfectionist - I just do my best, and it's always turned out fine so far.
3) Closing the toe up (if you are doing a top-down sock. I can never remember how to do kitchener stitch, and I have to pull it up on Youtube every time I want to finish a toe

I like Silver's Sock Class for a first sock:
http://www.cometosilver.com/socks/. I use Double Points, but she explains a two-circ method too

I made a pair of little tiny socks first (the ones my monkey is wearing in my avatar).
Something else I learned the hard way: don't cast on too tightly if you're doing a top-down sock! I usually cast on over two needles held together to keep that edge REALLY nice and loose - otherwise, it feels binding around the calf.
Good luck!! Keep us posted!