I have that same issue with hand writing and typing too Kitty. Even moving the cursor/mouse to get it to land where I want is a challenge some times.

I always have a word document minimized on the computer and tend to type things there and then copy and paste them into emails and posts when my coordination is shot.
That way spell checker catches most of the errors in typing, spelling and punctuation; and its easier to correct them without having to delete and re-type.

When I don't do that, I almost always have to go back and edit.

With love, Erika