I don't know where you live but most cities in the USA have low to no cost mental clinics. Sometimes there are hotlines where you can call and get that information. And the way I started communicated with some parts in my head was asking them a question. I asked if they could hear me. And the first thought I received was yes. I will sometimes talk out loud but most times we converse in my head. I think if you start out asking if someone wants to talk to you, you will be surprised by the response. Before I knew I had DID I would have loud thoughts shouting out stuff, One over the other. Once they knew I knew about them they don't shout. They just say what ever is on their mind and I respond in turn. In the beginning some would say mean stuff but after time that stopped because they knew I would listen.