It might be that you're reading things a bit over your head, but more likely the theologians you are encountering aren't doing a good job of explaining. If you are getting confused, change your reading. Theology should elucidate and strengthening your faith. Stay with reading that is authentically Catholic and gives you a solid and clear understanding of the faith. Start with solid works such as Frank Sheed's Theology for Beginners and Theology and Sanity.