My home is my Church and my body is my Temple...and I have no religion that I call my own. But, I am sure you recall that.<quoted text>
That hasn't been what a 'Christian' is for over 1700 years.
Christianity of the last 1700 years is about Paul and which "church" has the "Real Truth".
If you have faith based only on the Gospel of Mark and nothing else then I would call you a "Believer in Jesus" all the rest are "Christians" and believe in Churches and Paul, not Jesus.
I would call myself a believer in GOD and JESUS, and of course the ANGELS, along with a Spiritual afterlife. I find Scriptures that support what I need to find ~ as do others. My intention is to water my Faith so that it grows to fulfillment, but this is probably because it is already so strong that I simply have no doubts.