As soon as you get him siblings he'll forget all about you and all that screaming will stop. I had a single for three days last time and I thought I would be the one to go crazy. Little guy doesn't know he's a duck yet. Hang in there.
I wouldn't mist or use towels next time unless your climate is very dry. Mine is very humid and that looks like humidity death. Did your other duckling hatch? I sure hope so.