[Exodus16]

I grew up in the LCs with the LSM. It is rather difficult for me to just "discard" everything from WL. Many things were taught with the Bible or read into the Bible which I have picked up without realizing.
I haven't come here to reject necessarily, but to examine. That's why I did a quick inventory of my own thoughts about sin & Satan; so I could figure out where I stand.
I have never been told nor treated as though I were posessed by Satan -
Even as a teenager and I was a surpassingly combative and rebellious specimen.
I have never accused anyone or thought of anyone as posessed by Satan.
(Full disclosure I have called one person an evil Succubus full of demons.)

So yeah, this teaching isn't really hitting home with me. That being said, What do I believe?
My general questions when examining a concept or teaching are:
How does my concept shape my experience?
Does my understanding in this idea limit who God is too me and His functioning in my life?

Which leads me to this question: Did Satan need to be trapped within the flesh as sin for Christ to be the Victor over death?

(As I typed these thoughts/questions I was reminded of Jadis from CS Lewis' book The Magician's Nephew.)