This is just an update - I have been clear for about a year, but I wanted to make an 18mo update as well. Still on the doxycycline and spironolactone, but these are for hidradenitis supparativa and PCOS respectively, not so much for acne. I have been off Retin-A for over a year.
I have had a few small breakouts lately, but this is because of sunblock and sun irritation, not really acne. I get a small bump every once in awhile, but not often. I currently have one blackhead and no active pimples. What you are seeing in recent photos is redness from pimples that healed recently. I do still scar sometimes. However, you can see how greatly my scars have improved!