Mental Health problems

Hey my name's Scarlett. I struggle to talk with my family so come here to ask for advice regarding a problem I've been having. I don't know if this is an Autism thing or if it's just where I'm broken but here goes! Fort last 3ish years I've heard voices and felt people inside my head. I don't know how to explain it really but I feel what the people in my head feel and I can hear them speaking. It's a scary thing to experience and I feel alone in it. I've wanted to tell my family for a long time but I'm worried they'll have me put in a mental hospital.