Hey NY! Sorry I'm late to this party but it seems like I came in at a great time. Saw your issues early on and your frustrations lol
I'm watching you now that I'm all caught up... looks like all systems go now for that you flipped to 12... its like waiting for autos to flower now, just longer is all
I grow in soil, autos and photos, all that was spoke about and mentioned here in great detail for you, pH, nute schedules etc etc, all good info-clearly! If you ever need more though or just wanna shoot me a question via PM, I'm here.
I have more patience than most and I will keep a plant longer than anyone else probably trying to fix it but I've never had to throw one away...they are resilient and once you get your ducks in a row and give them time, they come back...I know it's frustrating as hell but aren't you glad you didn't give up on them now when you look at them?
Happy growing Costanza