Thank you very very much for your help! And thank you for those tips! I have been watering with tap water but I will start watering with Brita-filtered water. It is potted with soil that drains well and has several holes at the bottom of the pot. I water thoroughly and when water stops dripping out the bottom I put it back on its stand to catch any residual water. It receives filtered sunlight everyday (through two curtains, and every other day I open one of the curtains to let more sunlight in) and has grown so much since I first got it. I have been watering weekly to every 1.5 weeks and it seems happy. I just re-potted it before taking those photos because its roots were REALLY growing out the bottom of the last pot I had it in, and it has since perked back up. Thank you again for your help!
