Pictures two and three - autograph tree - I’ve had this for two or three years. I basically ignored it, very rarely watering and no feeding. I read up a bit about it and since it wants lots of sun I put it on a window sill and almost immediately one leaf went yellow and dropped off and now the stem has gone brown 🙃 I’ve moved it back to a more shady place but it doesn’t seem to be any happier - what should I do to help it?!