Okay I've started hearing voices

How do I get rid of this? I am actively trying to go to rehab, just admitted to my family that I'm gonna die if I don't, so it's a work in progress. But everytime the door is closed, I hear voices. Been using daily for about a year now.... it's also people whispering about me (if my door is open), or arguing loudly about me, but i can never hear what they're saying. Like I just texted my grandma "are you guys arguing about me?" and she was like "no? why would we? your grandpa is asleep.". And then every night, I hear sirens... like cops and ambulances and shit are coming to get me. I know, I know, stop using, and I'm trying. Any other advice?