As a Christian, how should we live our lives?

Well 1John4:6 says" We originate with God" so this helps us to appreciate that anything we would participate in would not conflict with the standards set for us in the Bible, So as one of Jehovah's witnesses we let Jehovah set our standards not imperfect mankind, and we take all of our direction from his written word the Bible. Mark 7:13 "You make the word of God invalid by your tradition which you handed down. And many things similar to this you do." Your to be commended on interest and your search for what is true.