I need to win the gaame(:?

kay so my current neighbor (who i nvr wanted to be friends with in the first place) and i dont get along. (some really dumb thing) she talks alot but i didnt even care cus i kbnow my true friends were there with me. i am youger than her but in highschool and she should be going to 8th grade. but she has been taking this game to the nxt level. she is now starting to write all of my fence and stuff. she has stolen most of all my good clothes and ding dong ditches us in the middle of the night. but what she doesnt know is that i know she is the one doing it. I need some ideas to get her back. ive herad take weed killer and write in their gr but that will just make our neighborhood ugly looking. her gr is all in our yard already and she throws her trash in our yard as it is. but i need something to do get her back that nobody is expecting to happen. 10 points to best answer! also please no rude comments this has been going on between us for almost 1 1/2 years..btw ive tried to be friends with her soo many times before but she jus backstabes me. i just want to end this game for good.(: