Roads

I have a 6 day trip in October. I have 2 nights at Old Faithful, 2 nights at Mammoth and 2 nights at Canyon. It may be too late now to change lodging, but I recently saw a post saying they would skip mammoth.
I can’t hike much, mostly want to do short ones to see the sights.
I’m the driver. Get a little anxious on crazy mountain roads and my passenger gets carsick. She will be taking meds.
My question is: which roads are the most anxiety inducing?
I want to spend time at Lamar Valley and was assuming that the drive from Mammoth would be more mellow than the drive from Canyon.

I’d like to know which roads are the least windy and anxiety inducing.