I can to relate to all of the above. I'm 75 and will soon be 76, with that being said I start my seasonal change over about a week before I intend to go. I usually spend about a day of that week giving the TT a good going over, (I'm not to critical) as I have the next six months to complete the task when I arrive in the RGV of TX.
I serve as a chaplain in a 55+ community and see many aspects of aging, some just say I can't do this any longer and quit.
Age and its variety of ailments affect us all to some degree or the other. These bodies of ours all have an expiration date.
We have several in the resort that have sons or daughters that do the driving and setup work of the unit when they arrive at the resort. Many leave their units there the year around and simply commute from their homes up north.
There are also several cabin/park models that are available to rent by the season of by the month.
The only restriction we have is the one put on us by our health and declining mental capacity.
A day in the south is much better than a season in the cold & snow.
Don't give up.....just start preparing sooner and if the day is too short or the energy is lacking, there is always 'Manana'.
Live life to the fullest and enjoy.