I do agree with most of the teachings on faith and morals. I am not "personally ... deciding what is Catholic doctrine". I am personally deciding what I believe. You would have me take Adolf Eichmann as my model -- he was told what to think and do, and did it. I believe that Eichmann is a poor model.

You don't claim to be the magisterium. The claim you make is that your opinions and the magisterium's teachings are identical. I have shown that in at least one case, you disagree with what the magisterium teaches; by your own criteria, you are not truly Catholic.

When the magisterium teaches, I give it careful, prayerful consideration. If I cannot accept it, I follow the dictates of my own conscience. Aquinas said, "Every judgment of conscience, be it right or wrong, be it about things evil in themselves or morally indifferent, is obligatory, in such wise that he who acts against his conscience always does moral evil."  Quodlibet, 3, 27 That is a magisterial teaching I agree with.