Ask-a-Dave's-Gardener: EVERYTHING I PLANT DIES!!!, 2 by Adenibi

Adenibi wrote:
Ok I\'ll try to make this compact.i started indoor gardening around two months ago,I\'ve successfully gown lettuce sage basil parsley and oregano as well as cat nip lemon tree seedling and avacado tree seedling and chamomile. All started by me.
I installed two decorative pots on my wall under decorative picture frames and potted stevia in one pot and rose merry and sweet mint.
The stevia started turning black or brownish and dying while that happened I noticed there came a infestation of pests little gnats and inside the pot there were what seemed to be hundreds of red and whitish tiny tiny bugs.soon after the Stevie died I bough new ones and the. The rose merry died then the sweet mint so I bought new mint because at the time I was told mint is a natural repellent for pests.
So then once again the stevia died so I left that pot empty the. The
Mint died and I decided ok let me change the soil, so I got a cup and scooped out most of the soil as well as most of the pests and switched to organic soil and planted cinnamon Basel and peppermint which should be natural repellents as well. They were doing good and mostly all the pests were gone I\'m guessing due to me scooping out most of the old soil I noticed they were dying again so I installed a light fixture above them(before I was using a portable LED light strip.
So now the peppermint as always is turning black from the tip of the leaves inward and curling up the shriveling up and dying(not at the stem yet)
And the cinnamon basil which was doing hella good is not turning light brown and the second I touch the brown leaves(new big leaves not old ones) they fall off without me even have to pick them off.
Sid note these plants were not grown by me they were bought from Home Depot. EVERY plant I\'ve personally grown is doing well with little to no pests. It seems everything g I plant in those pots on the wall die.
If switched the soil
Switched to repellent plants
Installed grow light fixture
Dried out the water to see if I was over watering nope
Added water ,nope still nothing.
I have no clue!!!!
And now the damn red pests are back by the hundreds in the soil. I\'m guessing I should\'ve taken the pots of the wall and cleaned them before adding new soil /or there coming from the soil that Home Depot plants them in.
Or maybe the change from growing outdoors to now growing indoors is to much for them I\'m not sure but it sucks and I can\'t figure it out ,I\'ve tried everything I\'m aware of. HEEEEEELP!