Potential overwatering and concern about gnats. Hi! I just repotted my plant, Cherri, for the first time since getting her. I know repotting in winter is risky but I could see her roots through the drainage holes and I could lift the entire plant and soil out of the pot. She was in a plastic starter pot from where I got her and is now in a glazed ceramic pot, 6 inches across, that has a hole on the botttom (shown in picture). I'm worried, though, as when I got my plants I also got potting soil - Organic Miracle Grow - and because it wasn't needed right away we put it in the garage for storage as our dog likes to get into EVERYTHING (except plants, which we find odd). It's been cold here, below freezing and typical severe midwest weather, so the soil was VERY cold... I have to sleep during the day and knew I wouldn't have time to do it this evening so I warmed some water for 15 seconds in the microwave and as I set up the soil into the new pot I mixed the soil with the water to warm it up as well as some of her original soil. I think I overwatered the soil but I didn't realize until Cherri was repotted so I spent about 15 minutes sitting there trying to soak up water through the drainage hole on the bottom, and I added some drier soil on top in hopes that would help. Another concern is gnats. I read online that organic matter isn't good, and my last plant who I tried to repot - Groot, the lucky bamboo, who moved from a water habitat to soil as a last resort because of root rot - had a bit of white mold(?) growing over where he died and around him, and we were noticing a few gnats around the house in the middle of a really bad winter which we found odd... and I'm worried they came from the soil which I used for Cherri. My questions are as such: did I do enough for the potential overwatering and should I just get new potting soil that was kept inside and repot again?