All leaves turning yellow. Help!

Lack of nutrition,P and K,phosphorus and potassium is used even more during late flowering so they've taken it out of the leaves as you've probably not added extra.

I think she's going to her end. 🤘 Look under a microscope 🧐

You've already successfully completed a grow cycle according to your grow journal, so I assume you haven't been overfeeding and your pH levels are correct. How is your feeding schedule? From the look of it, without more information, I'd guess you might be in the 6th week and have reduced nitrogen. This is just a guess, though, as I don't have enough details 😅

too much nutrient or too not much nutrient😅