Your plants are dead if you don’t transplant, the soil is nuked, the pH will flux for weeks. The plants are consuming their own leaves to try and make new leaves. They are already so stressed transplant will be a relief.
research your light and how to use it.
Your light should have started out at 35+ inches away as it is most likely full spectrum. The combination of to much light, to much water and adding nutrients that the plant can’t use is heading for a complete disaster.
Clear the roots and check them out, take a picture and follow this thread for your transplant.
Everything that any OG like yourself does to help you directly is done voluntarily and it costs, personal time. I’ll check back next week and see how it’s going, be good to yourself.