Anyone have experience with an early psychosis intervention program?

Just got referred to one in my town by the crisis workers. I’ve been having escalating paranoia for years and I have a (probably incorrect) diagnosis of ocd, recently it’s gotten quite bad and I believe there’s demons in my house that whisper to me and put stuff in my skin, I can also see them moving around and hear them in the halls of my house. I’m going to get a psychological evaluation there and hopefully try to find the right meds but I’m wondering if anyone has experience with a similar program