Few years ago my grandma also suffered from stroke. She can't walk/stand alone, can't move her arms/fingers freely, can't speak straight (she also loose her abilty to write and read).

It took her almost a year to recover. She's now doing fine and her life was back to normal again (she loves to plant in her garden today).

In times like this talk to our Father, He will surely listen. Throw your worries to Him and He will give you peace.
I do hope for the fast recovery of your grandma.

Sending you my virtual hugs. Keep on fighting and never loose hope!