I really miss camping but don't know if I can do it alone

I would try a Class B for a rental and see how that works out for you. When I was driving school bus we had a woman who had a similar experience with a new 5th. wheel & truck. After her husband died she bought a 33'Class A to continue travelling alone at age 73. I have had the spinal fusion also and use a walker to hook up the sewer and water/electric. It works and I still enjoy getting out. I .appreciate having large tanks so I don't have to dump very often