The fan leaves should be left on. Think of them as solar panels. If this plant is not going into the earth, repot in a slightly bigger pot. Repot in a bigger pot every six weeks after that.

You have some time until it shows you its sex. One more bit of advice....plant a few more. If you only have one plant, and it goes male, you,' my friend, will not be happy. If you had, say, three more, you most likely will have at least one female (or maybe more).