Woo-hoo--new bike for Christmas! Isn't it exciting? We wanna see pix!

I think you're right to master one new skill at a time. I did the same with my new bike, spending some time getting used to using brifters vs. my old barend shifters, and holding off on the clipless pedals until about a month later. I still love my older touring bike, but I'm so much faster on my Bianchi Veloce that I had to check the calibration on my computer--I thought I couldn't possibly be going that fast. Guess what? I was!

Enjoy your new best friend!