I come from a background of playing electric guitar with a pick. For me, it was not a case of just picking up the banjo and starting to play something.
Now with the mandolin, I picked it up, figured out a couple of backwards guitar chords and started picking something that resembled music. But with the banjo, because I had no right hand technique, anything I played, guitar style, sounded pretty terrible.
I spent 5 days, maybe a week, just practicing right hand rolls, mostly on open strings, using Ben’s roll lesson. If you are not used to wearing picks, then that takes a bit of time too. They feel very awkward and uncomfortable in the beginning. It probably took me two weeks before they didn’t feel completely foreign on my fingers and especially, my thumb.
I’ve been playing for four weeks now. Now, the things I know about guitar playing, hammer ons, pull offs, fingering chords, are making progress a lot easier and quicker.
But in the beginning, you have to be really patient and understand that your muscles have to learn new movements and that will take a bit of time.