No need to overreact like that to everything, no need to use that pesticide either and no need to use a dehumidifier, forget about humidity altogether. Focus on getting the plant through bloom to harvest that's all you need to think about right now. Your soil conditions look ok but I don't recall how rich the soil is so I can't say whether you need to start with the PK nutrients seeing as you flipped over to 12/12 recently. Not all bugs are bad.