Hello everyone! So I have a succulent plant called Flaming Katy (Kalanchoe Blossfeldiana) and it has been giving me problems ever since I first got it. Currently I fear it is dying. some history: Over the summer, this plant got infested with caterpillars. After I removed it and the destroyed leaves, the plant started doing really well (even though it is in normal soil). A couple weeks ago I noticed it had lots of aphids. So I googled solutions and found that I could spray the plant with a mixture of oil, water, and soap. The aphids are dead (or so i think. they are all black), but now my plant's leaves are dying (most of the leaves look wet-ish, some leaves are black and shriveled, some leaves are yellow and hard.) Also there is a layer of mold on the surface of my plant. What does this mean? how can I save it?!