Gonna say up front hard for me to relate to this problem. Me with characters I make things I really like. In my main story currently the Main character (Valorie) is a shining example of purirty and goodness to the fault of being so good she accidently hurts people with it. This is not a quality I have, but I quality I would have liked to have. Another main character (Victoria) kind of goes dexter on people which again I think is a life style I might have enjoyed(does that make me evil?) So I see pieces of myself in characters. I your making then you, maybe you should step back, and think why they are that way? Unless you are making them you on purpose I am sure there should be some differences and once you spot them maybe you add to them and shape them into a unique form. Ps I made a self insert character once. I killed him. Does that say bad things about me? I seriously tried to think of a way to make him live, didn't work. So he died, something my ex hated when we were together.
