PT/OT told me it takes 3 days to lose it, and 6months plus to get it back. They were referring to strength, muscle use, and coordination. At the time I thought, Nahhhhh. True believer now.
I think the most important thing is to always remember it's a journey, and even though you may "want" it to be faster, it's one day at a time. One foot in front of the other, lest you get in a hurry and trip and fall. I say trip and fall, literally, but mostly figuratively.