Need advice maybe?

Not sure if this is the right subreddit or flair to use but I’m kinda stuck on what to do. I’ve been having a hard time with seeing and hearing stuff that isn’t there, my mom and some other family think it’s schizophrenia. One of the voices tells me to hurt my self kinda often and it’s been getting worse+ more persistent lately, I can barely fight it anymore. I don’t feel safe with myself but my grandparents don’t want me going anywhere “serious”. Any advice on what to do? Other than “ignore the voice” or medication.