You are quite correct I do not describe myself as a conservative, I claim to be an orthodox Catholic for whom the gift of Faith enables me to believe without doubting whatever God has revealed. I believe with all orthodox believers that God has revealed sufficient of Himself fhrough Scripture and Tradition for me and the rest of mankind to be saved without any more revelation. The Church teaches that Revelation ended with the death of the last Apostle.
You speak of Truth as though it changed from one generation to another. You don’t seem to understand that if Truth changes then it cannot be Truth because at some stage it would have to be false.
Those who advocate ‘changeable Truth’ usually do so in order to justify behaviours which are offensive to the Law of God. It is, alas, an all too common human failing best known as self-deception. Whilst it may be relatively easy to deceive oneself, it is impossible to deceive God and that is what will ultimately matter in the final analysis.