The clutch on this little bugger wears me out. I've just about got to stand up and hang onto the steering wheel to push it. If it's any worse on the big tractor I don't think I could drive it. I was trying to get the corners cleaned out and was having to clutch to stop, put it in reverse, back up, clutch again, engage the PTO, put it in gear, release the clutch, pull up and mow a little strip, then do it all over again. 3 or 4 times was all my left leg would take and it was shaking then. If you did that on a regular basis, you'd have a left leg like Conan the Barbarian! ;o)
Your big tractor with the cab might be easier for you to use, as far as the clutch goes. We used to have one of those but we sold it.
The clutch on my John Deere isn't hard for me to use, I'm just afraid of making a simple mistake and killing myself, like climbing off and forgetting to put it in park first.