RQS - Bubble Kush Automatic - First auto

What a mess. I MAde Three major mistakes: (***UPDATE!**** The remedie I applied is working for now. She seems to be bouncing back just fine.) 1) I started this grow i basic potting soil thinking it could hold me over. I only had like 5% ratio of perlite, and thought it would be no problem. Going into week 8 the soil was very compact, and "low", so I added cactus soil as topper and some argile balls .... it did nothing but suffocate and cake up the watering. 2) I over watered due to new soil, and I noticed, too late, I have been a 1.5 liter watering can, I thought it was just 1 liter, so I have been giving 4.5 liters of water, that was getting too much and I was doing it every three days. My PH in was 6.5 and out 7.5! 3) I am stuck between a giant armoir and a wall. So air flow is restricted to one exhaust out the top, with a fan pulling 194 M3, and two hole flaps open at the bottom, the fan is too weak to create passive intake, so I stuck a old clip fan on the bottom hole like an intake, saved me a little bit , but she suffered a good week. Results: I lost at least 20 leaves. They all turned yellow FAST and had a burned look to them, some had munched holes from gnats. No doubt the wet soil no air caused some fungus gnats (although I have visually seen nothing). The roots suffered over watering and probably have a mild case of root rot... The flowers and upper plant had a white mold like substance going on (VERY mild, and soap and water and air made it better)... Every day this week I thought of tossing and starting over, but her flowers are still very "lively looking". I ordered Cal mag and removed all the top layer of dirt and raked it for air intake. The cal mag took a week, so I added egg shell and broth to do a quick calcium fix, not sure if it helped...The Cal Mag it just got here. I have not fed for four days to let the bottom soil recover, but every day 2 leaves at least turn yellow fast. So finally, I got a the CORRECT soil and a bag of perlite, did a good mix, used it as top soil, did just ONE bottle of grow nutes, organic PH down, and Cal MAG. Now I wait, the flowers should have been fattening up and smelling good, now they are kind of "stuck" in last week looking mode. The only positive thing is they are a LITTLE but bigger, and have put out aLITTLE bit of sugar on the leaves and buds. The smell is odd, like sweet bubble gum mixed with rotten egg, it could be because of my egg shells and it's struggling to produce sweet terpenes.... That said, I sniffed the soil for rot, I smell nothing, not even soil smell...just neutral nothing smell. I think the stupid generic potting soil I used is fully depeleted... I forsee Three things: A) This CAL MAG top soil treatment will work, and I will bounce back but a week or two delayed. B) This is the biggest the flowers will get, and the treatment works, and I just harvest a lower than perceieved bud and less quality. C) She continues to turn yellow leaves and dies so I try again. I have hope... Again, I like how the upper part of the plant looks and she is bandaided up. This is where I pray to Weesus and hope the plants resiliance and this genetics pulls me through! I have learned I will never use the wrong soil AGAIN! (***UPDATE!**** The remedie I applied is working for now. She seems to be bouncing back just fine.)