I got this propagated mother of thousands about 6 months ago… it was growing new leaves fine. But recently now that the new leaves are growing, the leaves below it are dying off and now it’s just the base and the new leaves left. I don’t water super often (2-3 weeks maybe), it’s in a NE facing window, and the soil is a succulent mix I got from the nursery but was wondering if anyone had any suggestions to save it? Is there a way to propagate what I have left?