I know exactly how you feel. I am 77 years old and have had several spells in hospital recently (minor stroke, Pneumonia, to name but two.
Currently recovering at home but will probably need a stairlift.
Carers call daily/ Main problem is that i have a house full of musical instruments which I can no longer play to the level I could before all this began.
Daily regime of exercises and medication. I have a very supportive wife and have a determination to get back to playing again (and driving)Good luck to all who contribute to this thread

Pete