Hello! I won this Thai constellation monstera at an auction and it was doing great until about 2.5 weeks ago. Her leaves are browning at the edges and one leaf has turned yellow. There is a grow light above her, she’s only watered about 1x a month (last watered 2-3 days ago), and is next to a south facing window. We have not used any fertilizer as I’m too scared to do anything I’m not familiar with. We have her with a bunch of other plants and two humidifiers next to the plants. Is there anything wrong with having a humidifier in at all time? Please help me save her 😭 thank you!