Good advice all round - dont sell the banjo - I almost gave up a couple of years ago when I developed Carpal Tunnel Syndrome (probably thro' playing the banjo?) Took a while to get playing again but glad I did. I also have arthritis in fingers & have learned to adapt my own style using just thumb & first finger. While not playing, I started building a few banjos, mainly for myself, which also helped & taught me lots about these fantastic instruments.
Play it with your feet if necessary, but keep the banjo and you will be glad you did
best wishes Pete