I can definetly relate to the anxiety. On January 16, I had 4 impacted wisdom teeth and 4 premolars removed to make room so they can fix the crowding I have in my mouth. Honestly, it wasn't that bad. It sucked, don't get me wrong, but it wasn't as awful as I had worked myself up to. The worst part was getting used to not being able to chew things with those premolars gone, but really, once the braces go on chewing gets harder each and every day so looking back it seemed more like preparation for the next 2 (or so) years. Just make sure you have lots of soft food ready for the first few days. The Sunday before I had my extractions, I made a big batch of potato soup to last me a few days. The premolars shouldn't be too bad, you'd be surprised at how quickly those gums heal.
I also know the anxiety about the pictures... I just posted mine the other day, and I cannot look at them. Believe me, if I can post my ridiculous mess of a mouth, ANYBODY can...
I just hold tight to the fact that it's going to change and that I will soon have the smile I've dreamt about since I was little kid. Just remember that no one can see your face and we're ALL going through the same emotions about our mouths... that's why we're here afterall.
I also wanted to say that I absolutely love "Fixmygrill"!! That's awesome. My ortho gave me a travel bag for keeping tooth stuff on hand that has the name of his practice, followed by "Professional Grill Repair Company". To say the least, I get a good chuckle everytime I look at it.
Good luck to you!! I'm sure you'll do great! It all sucks to begin with, but we adjust and it becomes normal, if you can believe that.