I was so happy with my first plant flourishing but looks like it was short lived. My jade is developing tan spots on leaves. I’m in zone 10a but it has been unusually cold and cloudy this year. I may have overwatered a couple of times but haven’t watered for last 2 weeks. However, it is getting worse. Is it the 80% humidity combined with my over enthusiastic overwatering or is it something else? Please help me save it!