tried the journal thing, but i don't really know how to start with that because it feels really stupid. i don't have any real proof that i actually have alters or anything, so writing to myself seems a bit weird. i do leave notes sometimes asking people to write me back, but nothing ever comes from that.
I encourage you wholeheartedly to write to yourself. And if you feel the urge to respond to yourself, do so! There are all kinds of splits, all kinds of ways for parts to interact. There are many levels of dissociation. Just try it, and stick to it for a bit, and see where it takes you. It has played an important role in my life. Also, don’t be afraid to talk to those voices, even if you have to get loud. If you’re in a safe place don’t be afraid to talk out loud, but mostly I mean in your head. They might respond, or they may not... but regardless, if some part of you (whether it’s a wholly separate part, or just your subconscious) is there, and you may as well send it encouragement, love, or whatever else you need.
Years ago (over 20 years ago) we used journaling in the beginning of our therapy. It was the best way to communicate without too much noise (there were a lot of us and everyone wanted to talkover each other). Eventually we phased out of that, and then later a whole new group of alters came up, they were different from us, almost their own little subsystem. Anyway, it started as you describe. Many of us could hear them, but we couldn’t see or interact. So several of us started writing to them. I wish I still had those journals to show you. I think the first entry was literally “is anyone there? Can you see this?” And so on. After a couple of weeks we started reading the notes to them, since they didn’t seem to come out. It was literally like standing in front of a giant black glass wall and hollering over the top at them (inside my head). We all started to feel a little crazy, but the therapist encouraged us. Eventually one of them wrote back. For 2 years we communicates with those people only through writing. It wasn’t fluid. It was a note here, and a response sometimes weeks later. Sometimes they didn’t want to respond and would draw a line in response, which I took as a “I’m here but not gonna discuss this” sort of message.
Now, 20 years later our system is in a whole new phase of things, and for a couple of years it’s felt like everything was getting worse. I finally pulled out a journal the other day and started writing. Even though we could easily talk to each other normally, someone chose to write back to me, saying something hard to say. Here we go again... maybe like before it will help.