Demons

I very much enjoyed the feeling of dread as if the addiction were a physical entity waiting to posses the writer.

Nicely flowing and tangible rhythm;
especially liked:

their minds are burnt
and their hearts obsessed
My friends are demons
My friends are friends possessed

Nice.

Adored this, addiction is a demon, one that still tries to tap on my window pane at night. So many people really don't grasp the feeling. Thank you for expressing it.

Um...very good...this was the first piece I read form you...some minor things that I think could be better, if I may...the comma in the refrain-type stanza is unnecessary--again, you can maybe add a little more spacing between "demon" and "is starting to possess me."  In the first stanza, you have "friends" without "a sane mind"--Oh, that can be horrible--I do have some experience, though limited--but, I think "mind" should be more plural there, since you say you have no "friends" with a "sane mind."  Either that, or you should say you have "no friend" with "a sane mind."  The last line of the third stanza seems to be there only for the sake of rhyme--unless there are actually three people there in the next room--but even if that's the case, the line seems to be like it is only for the sake of rhyming--it is a little weak, and I'm not sure how you might make it stronger, other than to simply say there are people in the next room who would suspect you of stealing from them if they saw you, weather there are three of them or five of them or whatever.  (Rhyme, while a good practice, is not exceedingly necessary...poetry plays with words, and the silences between the words.  That's a main difference between poetry and prose.)  But if it's still going to rhyme, it could still be something stronger than it is in that last line of the third stanza.