how do stroke survivors communicate in sign language ?

hello ! i had a stroke when i was 14, i’m now 21. my speech is excellent and my right-side functioning is great, but i have difficulty with elbow to wrist movements and my fingers tend to lock up.

i’ve been looking into learning sign language since i’ve noticed that, while my hearing is still good, sometimes it processes incorrectly and i either: (a) can’t comprehend what was said, or (b) hear something else entirely from what was originally said. however, there is some significant difficulty with learning asl since from what i’ve seen, majority of the signs require both hands while i can only really effectively use one.

i know that i’m asking for a very specific demographic here, but is there any way to work around this issue ? i’d really like to be able to use asl as an alternative form of communication since my auditory processing issues are really mucking everything up for me. thank you in advance !