Hi Noodle,
I just wanted to welcome you and say you are not alone. I don't think worrying about how you Will look is vain at all, in fact, many, if not all of us had the same concern. The great thing is, hair does grow back. Between my AN surgery and my BAHA surgery, I was missing a chunk of hair for over a year (my hair is medium length) . As others have said, if your hair is long (or longish) it will probably cover the incision. As for the surgery itself, I am also a control freak and decided I could control how much I knew and possibly expect postoperatively and had to be satisfied with that since everything else was out of my control. I had complete faith in my doctors' abilities and just kept a positive attitude. Keeping busy with other things will make the time fly between now that the date of your surgery.
Best wishes,
Wendy