He freaking pisses me off so bad. I lock my door because he keeps touching my stuff/taking my stuff/ throwing toy grenades of little balls in my room when I just want to be alone. And he hits my door/kicks it for at least 20 minutes or more straight, then goes to get the keys to my bedroom door. I JUST WANT TO BE ALONE WITHOUT HIM BEING ANNOYING? He's 10 and he acts like a freaking 5 year old like my mom has to hand-feed him because he's so picky, etc. He doesn't sleep alone either. When its night he's scared to go downstairs alone even with the lights on yet somehow when he's secretly watching tv without mom knowing he's fine. And whenever he's bored instead of going outside to his friend's house (a few houses down btw) he comes to bother ME. This has happened countless times and now matter how much I complain to my mom and tell her I want the keys to my room hidden somewhere he wouldn't find it my mom doe NOTHING.