The warmest of welcomes to you at a time where you fear for your son and perhaps yourself and are feeling so lost as to what to do.
With you mentioning 'My son is getting worse he scare me', worse implies this all started at some point with something basic perhaps and has escalated dramatically from there. I can't help but wonder how and where it all started. Both you and he may not be entirely conscious of it, which is understandable. Btw, with everyone here offering you some good and solid advice regarding direction, something else to possibly consider as a resource could be 'Hearing Voices Network' (the Australian division). It's another avenue to explore which can offer an extensive education and support network for the person experiencing hearing voices and those around them who are trying to help them manage.
What I mean when I say this may have all started with something basic could involve, for example, your son basically imagining he's being tracked. The thing is that most of us have been led to imagine we're being tracked in some way but don't give it too much thought beyond basically imagining. Before going any further, keep in mind a lot of internet sites have tracking cookies. So, you could be researching something on YouTube like 'Am I being tracked?', when stuff comes up about all the ways advertisers, companies and the government track certain things about you. Because of tracking cookies, YouTube starts serving you more sites to explore in regard to being tracked, leading down a major rabbit hole. When something starts to say to us 'They're tracking a lot of what you're doing, you need to pay more attention', this is still not necessarily a problem but when the 'voice of intuition', for example, is perceived as an actual voice and not just simply words that come to mind, things can start to go seriously wrong. When what simply comes to mind in the form of words becomes a convincing voice or convincing multiple voices, those voices can begin to dictate just about every aspect of reality. For some, the reality becomes 'I can only trust the voices. I can't trust anyone else'. Btw, there are plenty of people out there who've installed anti tracking cookies based on instinct or intuition's insistence.
I'm wondering whether you can work with your son's reality in some cases, leading him to imagine a particular voice is not always worth listening to. For example, when it comes to yelling in the neighbour's driveway, 'Do you think it such a good idea to be drawing so much attention to yourself, leading more people to notice you?'. In other words, whatever it is that led him to yelling doesn't offer the best advice. Your advice can be trusted in this case. You are far more trustworthy. You possibly become the voice of (good) reason for him not doing certain things? Could you become the voice that he's lacking, the voice than grounds him out of certain ideas or beliefs? Of course, the serious lack of sleep will be adding to his hallucinations. How to manage the serious sleep deprivation could involve some outside the square thinking. Where would he feel safest sleeping and/or what would lead him to sleep? With possible high levels of dopamine (a natural stimulant) in his system, it may be incredibly hard for him to sleep. I'm wondering whether your son experiences a particular 'voice' that tends to calm him. That may be the one to appeal to.
