Day two, and a few questions

[crown exposed]

I just had my transplant two days ago. I have a few questions that I'd like your opinions on.

I'm a teacher and go back to school in 17 days. Do you think anyone will notice that I've had work done? Will the stubble still be present? That'll give me total of 19 days since the procedure.
I'm 43. I had a small bald spot on the crown and then thinning around that. I had a comparatively small amount done. 1179 grafts, about 900 on crown area and a few hundred at front for fullness. This may sound strange but I don't want to have a thick head of hair. I'm hoping to fill it in some, but I think I would stand out if I had a thick head of hair after being thin for so long. It appears that the amount I had was rather small compared to a lot of you, so does it sound reasonable that I would get what I'm looking for?
Last, the donor scar. I can conceal the scar now, but I don't want to have to worry about it forever. Of course, I still have stitches in place now so that makes it harder to conceal. How long does it take generally for the scar to heal? I like to wear my hair short on the sides and back and hope to do that again.

I appreciate any advice you can offer. I know that I'm at that stage right now that I'm getting paranoid and obsessive about this. I hope that diminishes once the scabs fall off.