I would give him 30 or 60 days (if it's not too much junk) after which point you will donate it to the Salvation Army or Goodwill.
Try to remember:
Helping: doing something for someone he is UNABLE to do for himself
Enabling: doing something for someone he is PERFECTLY CAPABLE of doing for himself.
What do you think about calling his mom and aunties now?
Please take some pressure off yourself. There's no "right" thing or "wrong" thing (unless you're talking about murdering someone). Trust in your HP/God/Whatever you want to call it. Everything that's happening right now is happening for a reason; you're learning about yourself and strengthening yourself through this process.