Calluses are a good thing. DON'T cut them off.
If they are 'getting caught' on strings, lightly file them smooth with an emery board or, even better, a glass fingernail file (same applies to fingernails).
Good luck, have fun.
"It takes a lot of devotion and work, or maybe I should say play, because if you love it, that's what it amounts to. I haven't found any shortcuts, and I've been looking for a long time."
-- Chet Atkins
-- Chet Atkins