Help! My Seven Year Old Sister Is Driving Me Crazy What Should I Do?

Patients, is all you need, they grow up very quickly, so you should enjoy them. After all you were her age one, so give her some time.  Try doing what she does to you,but don't do any thing cruel, that will make think think and might understand how you feel.Also, talk to her, not as a seven year old, but pretend she is  grown up, and treat her gently. If you stop getting annoyed, she will  change, and she will probably annoy you even more when you get angry with her, so try instead of getting upset with her, let her know that she can't annoy you and she'll get bored.