[header] How to stop your little sister from annoying you [title] Communicate calmly. [step] When you are having any kind of conflict with another person, it's best to to avoid dealing with the problem while you are feeling angry, frustrated, or upset. You will probably not communicate well, and may just make the situation worse. 
[substeps] If possible, remove yourself physically from your little sister. Talk about what happened when you both feel calmer.