HELP!! I got this Peace Lily 7 weeks ago at my mom’s funeral. The leaves keep turning yellow. On here it has said either too much water or not enough sun. I have moved it to my sunniest spot (although we are very cloudy this week), followed weekly watering guidelines, and used a grow light. On Thursday I removed yellow leaves and ran the grow light. Friday it looked perfect, and Saturday it had more yellow leaves than ever. How much should I water it each week? I am NOT good at keeping plants alive, but because of where I got it, I am desperate to succeed this time. Please help me!