Yeah. Are you going to teach him/her the supreme metuhl art of inebriated ground assault from fourth story windows? ...and the survival of such imperial acts?
I had never changed a diaper until my first was born, either. It's amazing how easy it was. As for the life crisis, you might experience some but, if you are anything like I was, it will all melt away the first moment you see the child. I will never forget it.
Anyway, best of luck to you both. I hope everything goes smoothly and that you are all healthy and happy throughout!