I am 61 In the beginning I had trouble strumming through an entire song to the performance I am able to strum more through practice

I also have arthritis and am currently playing acoustic I had the action lowered and a lighter gauge of strings installed at the same time This helped

I do play songs with barre chords at beginner level such as woman Funny I have no problem with fchord but certain barre chords are harder

barre chord songs do hurt after awhile Also try shaking out your hands