So I'm one of those people who can barely keep a plant alive no matter how hard I try. Recently a friend gave me a potted Calla Lily. I would really like to keep it growing, green, and happy. I've done my best. I re-potted it into a bigger pot, water it regularly, I put it in the sunniest location in my apartment. But it's still dying. :( Are there any people out there with green thumbs who can give me advice on how to save the poor plant? Advice would be much appreciated.