There's a few things to digest from this, but I'd like to start with you. You didn't come here for that, but bear with me here. I've gathered that she picks on you, but I'd like to know more about your relationship with your sister and your home life in general. I take it from your post that it's just you, your sister and your mom in the picture, yes? If it's not digging too deep, what happened to your dad? What is your relationship with your mom like? As for your sister's comments on your hobbies, you obviously don't ignore it all the time, or you wouldn't have come here to tell us about it. Internalized? Sure, but it's definitely having an impact on you. When do you remember this behavior starting? When did it move beyond picking on you to taking stuff out of your room? I know that she didn't actually take anything when you pinned her, but what exactly drove you to that moment? Thinking that your headphones were stolen was the last straw, but what escalated if from being a dick to outright stealing stuff from you?