Beginner Gardening: Diffenbachia not doing so good help please!, 3 by gabylokita41

gabylokita41 wrote:
I recently bought a diffenbachia for the first time. It was green with white at first and looked lovely after 2-3 weeks of having it by my window and only watering it 3 times it’s not doing very well. The leaves are turning pale white with tints of yellow and they curl and fall off but I also have several new leaves that are green and haven’t uncurled yet so I don’t think it’s dying yet. Am I overwatering, under watering, or did I give it too much light. It’s been cold recently but my apartment is kept warm but since I had it next to my window I don’t know if it was too cold? I don’t know what to do please help me!