Congratulations!!!

Re: pedals, also consider that some are easier to clip in and out of than others. I think that generally speaking, pedal systems that are dubbed "mountain bike" pedals are easier to clip out of than ones dubbed "road bike." But you can use "mountain bike" systems on a road bike.

For a variety of reasons, I use Speedplay Frogs--a "mountain bike" system. I have always felt securely attached to my pedals when I want to be--but I've also done emergency stops where I find myself standing with both feet on the ground with no awareness of having tried to unclip.

Anyway, ride and have fun! Yay for new bikes!