Can I have mixed characters like an Aiel-wolfkin or a Warrior-Aes Sedai?

No, this is to help prevent god-modeling or the creation of super hero characters. If you want to have an awesomely powerful character, you can, you just have to work for it. (See tier questions below).

More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.