What Do I Do About "My Convictions‪"‬

How can we know the vital difference between my true convictions in my spirit, versus the preferences of my flesh, the tainting of my viewpoints from history, experience, or so-called education, and desires to please men? And, how then do we remedy amongst God's Family these matters, isolating the flesh from the Spirit, and the immature perspective from the mature? How do we proceed when at an impasse, without compromising and without separation or division of hearts that must be One in Him?