Five years ago, I was “more liberal than the liberals”. At that time, I would have LOVED to have seen the Freedom of Choice Act come into law, I rooted for states that had some form of civil unions for homosexual couples (and felt that the civil unions didn’t go far enough), was a big advocate for birth control, saw nothing wrong with pre-maritial sex… etc. All I can really say is what a difference 5 years makes. I now know and believe that what the Church teaches is correct in these, and other matters. How I got to this point was reading WHY the Church held these positions and prayerfully considering them. I also operated on the assumption that there was the smallest possiblity that maybe, just maybe, I was wrong. I focused on even the smallest statements I agreed with (one of them being that pre-maritial sex can harm people physically and psychologically… learned this the hard way myself) and built up from there. Even then, when I was in the process of learning and growing, I was still very, very stubborn, but today, I agree with the teachings of the Church.
It was not an easy road, but one that I am glad I have traveled. To start, I would suggest reading Humanae Vitae that was written back in 1968 by Pope Paul VI. Find at least one thing that you can agree with and work with that. Always pray, and ask God to show you his will.
I will be praying for you as you begin this process.