Boy do you bring back memories of when I first started hatching!
You're doing fine.
Keep.Your.Hands.Off.The.Bator. Just quit it. Remember, temps & humidity are NOT perfect in nature, either! -- eggs can take a LOT of abuse & still hatch.
I've had 100% hatches. I've had 0% hatches. It's like anything else, it just takes practice - and patience - and every time you hatch, you learn something new.
Welcome to chick hatching fever!
Thanks! I'm about to make signs for myself that say "Look in the window and WALK AWAY."
The kids and I are getting stir crazy. Maybe I can bundle them up and throw them out in the yard for a while.