You are not alone! Some of my personalities include Gnash, and Dragon, both of whom I first knew as sinister, angry, creepy parts. I was afraid of them. The very best thing you can do is talk to them and remember they have very good reasons for being that way. They need as much understanding and acceptance as you can muster, especially when it seems like they don't deserve it. You must befriend them. This doesn't mean agreeing with their ways, but it does mean being respectful and doing all you can to understand them. This is hard when dealing with scary parts, believe me, I know! Over time, Gnash, who once seemed like he wanted to destroy everything good in my life (his life too), became my friend. Some time after that we quite naturally became one. Gnash had never experienced joy of any kind prior to that. Even though he was so awful in so many ways, he was like that because he took the worst of the abuse and pain for me. Gnash was my bullet proof vest, and he suffered all the things I couldn't handle. Looking back I'm so thankful for him, and my gratitude and understanding helped heal his pain. He changed a lot. Even Dragon, who is just as creepy and odd as his name suggests, is a friend to me and helps me now.