Worth mentioning - for a long time, I found my handwriting messy AND my hand would tire out. When I was about a teen-ager, I decided to write in call-caps, very clearly. I've been doing that for a long time now, and worth giving a try.
replyteen-ager? call-caps? Cursive (several hundred years old) fixes this.. all-capitals(caps) or block-caps makes writing more laborious, possibly easier to read (which is why it used to be requested on hand-written forms?)
reply> (several hundred years old)
replySeveral thousand more like.