How do I teach my 16m to sleep on her own? She is currently co-sleeping with us.

You have to start slow. Try on maybe once a week 1st. U can try by allowing her to fall asleep 1st then slowly shift her to her own bed. If she is awake, just let her kn that she's a good gal and it's not so nice to slèep with u on the same bed. Once i repeatedly do this, she will soon get used to it.