If your little sister follows you into another room, you can leave the house to take a walk or go for a drive if you can. That way she can’t follow, and you get time to cool down.
You could go to a movie together, or watch a favorite movie at home. You can also draw together, or read a book together. Playing games that you both enjoy is also a good way to spend time together.
You could say something like, “Amy, when you come into my room and touch my things, it really bothers me. I don’t mind if you touch it, but I’d really like you to ask for my permission first, especially since some of my things are breakable. Will you ask from now on?”
For example, if your little sister takes your things without asking, one of your rules could be, “You have to ask for permission before you can touch or use my things. If you don’t ask permission, I can tell Mom and Dad. ”
