Do all your clipless pedal falling off now, so you don't scratch up your new bike.

Practice a lot with the pedals. I don't just mean in your driveway, I mean doing a lot of riding on lightly traveled streets, stopping, starting, clipping in and out on hills, etc. It's not the routine unclipping that will get you, but the unexpected, e.g., someone stops short in front of you, you try to take a foot going up a hill but can't unclip before your momentum runs out, etc. Those things can be tricky at first.