Lily Don't give up now. You can't learn as quickly as young people but your brain is still working and when you start again you will see(hear) progress.
If new chords put you off then practice the old chords find an old fashioned guitar book and bang off some chords one after another.
I am relearning the piano using an e-piano and I play scales when I am too tired to think. I am now after two years, further than I ever was but I can't play anything by heart which is what my GDs do.
GO and get your guitar and sit down and play for 5 minutes and the next day for 7 minutes..............
The Republic of Ireland and their tensions with migrants.
My four year old grandson "doesn't want me"