Please help 💔

Hi everyone! I am a first time fiddle leaf parent & am really struggling. I got my tree in November and she did amazing with very minimal shedding for months. As soon as the weather got warmer, I had to start using my window AC unit. Without realizing it, I was blasting my tree with cold dry air which of course she reacted poorly to and started shedding tons. I moved the tree to the other side of my apartment away from the draft and closer to my window for more light a couple months ago. She has 2 brand new branches at the bottom and has new growth in 3 different places at the top of the tree, but is shedding a bunch still. At first my research was telling me that bc the leaves had dry crispy edges I was under watering so I started to water more frequently. This did not help the shedding and ended up in light fungal growth at the top of the soil. I don’t know what to do now as it’s odd that the tree is growing in 5 new places but still shedding quite frequently. Please help ❤️