So im having a lot of issues here, and i dont even know if my plants are worth saving, ive been growing 4 plants for the past, i wanna say 3 months and from the beginning i knew something was wrong i had about 12 from the start over time they started to wilt from what i known from previous grows had no issues what so ever but after a while the four i was left with finally kinda exploded once i feed them nutes but as i was feeding them i knew something and it was mostly my fault but i was feeding my vegging plants water with a ph of roughly 6.3 to 6.8 and ppm of 800 EVERYDAY except i had forgotten about the whole feeding schedule i never even thought about it, a big rookie mistake on my part but after i caught what i was doing i had started to notice signs of nutrient deficiency which slowly turned into nutrient toxicity, now ive flushed my plants nearly 5 times overall ive probaly used about 100 gallons of water using 24 gallons each flush 6 gallons per pot of soil(fox farm happy frog soil) 3 gallons of soil per pot. After all this flushing though my ppm in two of the four plants is at 300 to 400 ppm and my water is at 15 ppm with a ph of 6.5 the other plants are in the 100ppm range but from what i know the ppm runoff should he lower then my water im putting in after an intensive flush like ive been doing so im just wondering if im wasting my time trying to bring these girls back to life but id hate to just kill them off. Please anything helps. P.S. I should have said this from the beginning but my seeds are all pretty much bag seeds ive collected them over time finding them in nugs here or their and have just kept them stored in a jar in a dark dresser probaly had some for 2 years now so i dont know if that could be a issue, and then also one of the plants is a autoflower which i was not aware of till i noticed that constant reappearing of female indicator nodes. Again thank your for any help you guys can give this was my last resort. Do i buy new seeds and start over or keep pushing the girls.