Mika I get your pain but don't forget that what truly matters is the IC and how your character unfolds and evolves in it. A CS as I see it is just an outline of the ideas you want to develop and build upon. And all tjose are a product of your own mind anyway. So my advise is don't struggle to make a perfect CS, make a sketch of your character and then let it stretch its own wings and show you who they are IC.