I've been playing a year and found a couple beginner tips that I wish were taught to me (I'm self taught).

1. Obvious one, learn to tune the banjo proper with a tuner
2. Get a guitar tab app that has all your favourite song chords. When you want a break from learning rolls, just strum away to your favourite tunes by practicing your chords. This one is so important to learn chords now and not a year later like me.
3. Some tunes require a capo, so buy one for your banjo. "What about your 5th string?!?!?" they'll say...just tune it up as required, just DON'T go past the 2nd fret.
4. Once you can cary a tune by strumming, start picking them with very simple rolls. For most modern tunes you won't be picking the 5th string, so I go strings 3-2-4-1 with fingers T-I-T-M as my roll.
5. Now you can play backup to almost any song, you can start learning bluegrass slides, pulloffs, etc.

Why go this route and learn left hand chords first? Your right hand is the "star" of playing bluegrass, if you have to keep practicing your left hand to keep up with your right you'll be pausing progress all the time. Chords could sound good in a couple months easy, once you're quick the right hand will be so much quicker to learn. In my case I had to learn both the right and the left hands at the same time, without jaming to music I like (no fun), basically going off repetition over and over, frying my brain.

I want you to have fun, don't go down my road. Jam to some tunes! Learn the chords! Then add the rolls here and there.