Hi Caroline and welcome to great place to bring new ideas and people into your guitar learning. I am 66, also left-handed playing right, and I’ve been in the JG universe for a bit over two years. I practice daily, and now that I’m more competent at it, 2-3 hours/day. What I’ve discovered is that:
- Fretting chords cleanly, even barre chords ,came relatively easy for me (well, not so much the B) though I’m always working to get them cleaner. I recently was in a guitar shop and tried to play a left-handed guitar - what a trainwreck!
- Strumming is still my big challenge, but getting better all the time. I did Justin’s Strumming SOS courses, to great benefit. I can now play well enough through moderately paced songs, and clunk away when I play something fast, but I never aspired to be a shredder.
- Interestingly, I am taking quickly to playing fingerstyle and it seems somehow more natural than strumming; left hand-right hand coordination seems dialed in, perhaps from practicing scales, arpeggios and chord progressions endlessly.
You will find that everything improves with practice. There are other posts here about lefty-righty playing and you’ll definitely want to read this one:
Cheers,
Michael