I had a very lengthy post composed for this last night when my browser crashed, and now I see that every one here has provided some good information.
If you have any bluegrass or flatpicking specific questions, fire away; otherwise, you seem to be in good hands here.
I’ll beg to differ with Sleestak on the scales/chords thing, though - he’s right about the necessity of everything, but I feel that learning the basic chords and just getting comfortable with holding the guitar supercedes the strength issue in the beginning.
My students don’t generally tackle theory or scale studies until they’ve mastered right hand strumming technique and are comfortable with the basic open chords:
First Tier: G, C, D, Em, Am
Second Tier: G7, D7, A, E
Third Tier: Dm, E7, A7, F
Fourth Tier: Barre Chords (E shape)
Fifth Tier: Barre Chords (A shapes)
I definitely recommend you learn those chords, one at a time, starting with the first Tier. For source material, go to OLGA (link) and find some tunes that use those chords.
There are as many ways of learning guitar as there are of playing it, and what’s right for picker probably doesn’t work for stpauler or sleestak.
Get comfortable, learn some basic songs. The most important thing is practice regularly - 15 minutes a day is far preferable to a couple of hours on the weekend.
If you stick with it and are still into it 6 months down the road, that’s when you should look into some lessons with a reputable teacher who can help you more directly.