(((Teen Idle))) - I'm sorry this is a very hard time for you.

Do you know why you moved into his room so soon? Do you think you and the rest of your family are ready to pack away some of his belongings and then rearrange / decorate the room to make it yours?? Even if you put the belongings into some storage boxes.
Are you seeing your therapist during this difficult time? I can't remember what your brother passed from - think I remember you mentioning a bad infection. I don't think being around all his things are giving you any solace. I wish I could say more - make sure you get help if you can't cope.