Unsurity & Awkwardness

Do you always feel your handwriting is messy/sloppy? I know my handwriting is better than some but, I don't consider it pretty. However, people mention it often.
Most recently, I wrote a letter 1) in a hurry 2) on a not-so-smooth-surface
and Mrs. Eisenhart said it was beautiful. I wasn't sure what to say so I chuckled and said thanks (which is what I always do when I'm uncomfortable--chuckle).
I'm always unsure how to react when people say things that I feel are untrue: "Thanks"?
It's like the awkwardness when you [imagine] the moment when you get kissed: "Thanks"? Walk away? Hug? New Subject?
Or, saying someone is a natural beauty. They can't help it. Some people are born looking gorgeous. Others have to work at it.
Back to penmanship.--> I've been trying to have my handwriting look pretty so [if] the next time someone mentions it, I can say "Thanks" without feeling I don't deserve it.

Anyone got better ideas??