My husband is 76 and was recently diagnosed. The neurologist thought he had Myasthenia Gravis first. It's definitely challenging.

We just bought a lifting recliner for my husband. It's a godsend.
He still drives and uses the handles inside our SUVto get in and out. So far he's ok getting in and out of bed. On good days he uses a cane, on bad days he uses a rollator and if were going somewhere with a lot of walking he uses a scooter.
Wishing you the best.