[Umaeril]

I agree with Dawn I was about to set out and write the same thing. However, I did read your statement about not being confrontational and the above advice is probably going to make you uncomfortable due to confrontation.

Sounds to me like you have some PTSD about this. He comes into your territory without asking and takes your stuff. You are obviously anxious about it and you say you search for things and that "I cant find it I I search for it until I get so angry I start to cry".

Sounds a little like PTSD. You have the frightening thoughts. You have some physical symptoms like crying. You have some of the avoidance aspects. Idk but you could have PTSD. Is this your older brother? Has he ever hit you or abused you in any way?

This is not your fault. If you have PTSD about this, that would explain a lot. You should give yourself permission to tell him to stay away from your things. Dawn has made some good suggestions. Keep what you value close to you at all times. Get a lock on the door to your room. It is inappropriate for your brother to be entering your room in this manner. Speak to your parents and ask for a lock for your safety and the safety of your belongings.

However, it sounds like if you could have done this you would have done this already. Do you have access to any money? Storage space or a locker somewhere. A lockbox can be easily broken into. But really Asami you should not have to worry about your belongings. I think this is a form of abuse, don't stand for it.