I think I might have a disassociative something??

So I'm really looking for advice, and this sub seems like a good place to start.

Whenever I try to explain this I feel like an insane person but it's real and what I feel. I'm not the only person in my head but the others there aren't really people, they are creations, constructs that I can remember deliberately building to help protect myself about 10 years ago. They can "take over" when I can't cope so to speak and are definitely distinct from Me. At the same time in a way they are both explicitly me, I can remember making them.

I really don't know what I should do. I know that the two of them aren't healthy but I need them and I can't see a future when I wouldn't need them.

Any advice on what this could be, if im even slightly in the right place or places to look for support would be greatly appreciated.