What did I do wrong?

Hi Reddit!

I brought home a 6 dollar thriving fiddle leaf fig about a month and a half ago, and she was doing super well the first couple weeks! I was misting her with water every couple days and watering her once every 10 days at about a cup and a quarter of water. I was also wiping her leaves to keep them clear of dust. She sits in a north facing window and receives plenty of indirect light and zero direct sunlight.

At 5 weeks in I decided to repot her into a slightly larger pot with new potting soil that was more draining than what she came with. I had done some research and this seems to be what fiddle leaf figs like?? She lost 3 leaves during repotting (I may have dropped her). I was careful to take out as much of the old dirt as possible while keeping her roots intact, and I spread them out a little bit more when I moved her into her new pot.

I knew there would be some sort of sad looking phase while she adjusts to her new pot, but I think at this point she is just dying! The little stem next to the larger main has browned its only leaf, and the main stem has dropped half of its leaves. Her leaves are also drooping heavily compared to how strong they were before. The color of the leaves has also lightened considerably from the dark green she used to be. I adjusted the vents in my apartment to not be blowing on her, but nothings changed. It’s been about two weeks now since repotting.

This is my first real plant that I’m taking care of intentionally so I would like to know what’s happening and where I went wrong!! I’m pretty upset that this happened. Please help!