Wishing you the best of luck mate - there's no two ways about it, it's a hard day, that's for sure. I had mine shaved about 2 months ago and shed a tear or two as well, but, believe it or not, you do get used to it.
And an added bonus is it takes less time to get ready for work etc - shower, make-up, wig, done!
Pre-cancer I had long blonde hair, and yeah, I know what you mean about hiding behind it, I loved my hair, it gave me a bit of confidence. I have absolutely NOT been brave enough to step outside my bedroom without my wig (or a bandanna).
Anyway, keep on blogging Julie - this forum is a great source of information, support and inspiration, and you're never alone in your journey.
Thinking of you!
Maxene