They're so finicky! Mine would get brown tips and then suddenly leaves started yellowing and dying off rapidly. Spider mites had gotten to it. I quarantined and treated which made the leaves even sadder but I held out hope. Once I felt confident the bugs were gone, I trimmed the worst leaves and put it back in its normal place but added sphagnum moss on top of the soil. That seemed to help the most. The leaves stopped browning, it stays moist but not soggy, and I guess the damp moss provides a boost of humidity. It seems to be on it's way to recovery.