<human>: Can you provide a brief rundown of the text in within 3 sentences?

I moved in this fall with two new roommates. They lived together the year before and the same roommate who is now stealing from me did the same thing to the third roommate all last year. 

The offending roommate has an adderall addiction that makes her extremely paranoid and aggressive, and whenever I confront her she screams, deflects, curses and generally loses all pretense of sanity. Confronting her seems to just make the problem worse.

Before anyone asks, I can't just lock my door because I have a dog that lives with me who can't sit in my room all day. 

At this point I don't feel okay being at home being in the presence of this clearly manipulative and possibly psychotic roommate. How can I deal with this situation? What relevant authorities can I contact to ensure that I don't have to live with a thief?
<bot>: My crazy roommate keeps entering my room and stealing my clothes and pretending she doesn't do it. What do I do?