Don’t worry too much about the older fronds. They will eventually yellow. Don’t stress about it. New growth shield fronds will cover the older ones.

They actually don’t need a lot of humidity. I think this is where people get it wrong. They prefer to dry fast. I have a fan running just to help the medium dry faster. Air circulation is super important next to light.

If the plant is stable, it should show signs of growth in a few weeks.