Same here. It's even a big problem in my digital art because the way I make lines generally makes them look weird. Trying to make one straight line makes it crooked more often than not, because my hand is shaky and my wrist hurts.
When I draw longer lines I tend to move my shoulder and upper arm instead of the wrist. The wrist is good for small details, but trying to get one long, continuous straight line without breaking it into parts is impossible.
