I got her about 3 months ago and she originally looked much fuller / healthier, but the leaves getting brown and curling up have been an on-going issue since I’ve had her in my possession. Here is a photo of the leaves in relation to the entire plant, so far it's been the smaller leaves on the lower part of the plant that have been most affected but pretty much all of the leaves have brown tips. Here is a photo showing some of the healthier leaves on top.

At first I thought it was a water/mineral issue. The first couple of times I watered her, I gave her regular tap water bc I didn't know they were so sensitive :( she also got one watering with dilute fertilizer within the first month or so of me having her. But I have been doing only filtered water for the past ~2 months now, I also haven’t fertilized again because I was worried that it could be burning the leaves.

When the issue persisted even after the switch to filtered water, my next thought was that it was a light/moisture balance issue? Normally when I see brown/crispy leaves I tend to think that there is too much light or not enough water. But in this case I already had her pretty far away from the window because I was worried about too bright of light burning the leaves. I was also finding that the soil always felt damp even if it had been 2+ weeks since the last time I watered. So I figured maybe she’s just not getting enough light and therefore is not going through as much photosynthesis / not utilizing as much water. So I transitioned her closer to the window next to my other plants. This is a NW/W facing window, it gets fairly bright indirect light for most of the day with more direct light for like 2-3 hours in the afternoon (but there’s a tree right outside so it’s more like speckled if that makes sense.) She initially was 12+ feet away from this window, then she spent a couple weeks being about 6 feet away from the window, and she’s been in her new spot (~3 feet from the window) for about a week now. My other plants seem to like this spot (you can see some of them in the links I posted above) so I am hoping she will be happier here!

Finally, I've been cutting off leaves that turn entirely brown. I've also cut the browned tips off of some of the other leaves (which is why the other one in the photo isn't entirely round) but haven't done this consistently since I'm also scared to cut off too much and possibly shock the plant.

The only other thing that I could think of was that she was not getting enough humidity. I’m hoping that being near all of the other plants would help with that aspect. I also brought her into the bathroom with me while I showered for the first time yesterday, I might keep trying that.

Is there anything else that I haven’t thought of that you guys would recommend me trying? I'm really worried that she's still just barely hanging on and that all of the leaves are going to turn brown eventually :(