Dear Ben,
Firstly WELCOME! :rahrah:
Now go to the front page and click on New Posts. That will bring you to an Index of Topics in order of the last post, with the exception of the first several Topics which are left there permanently whether anyone has made a recent post or not. They are there for their importance.
There are three particular ones that may help you to understand:
Collection of Resistance Writings
Letter of Three SSPX Bishops to Bishop Fellay - PDF
Group for Reflection Among Catholics (GREC).
There's a lot of reading there, and maybe they demand a previous knowlege in order to understand what they are all about. It depends very much on how much you already know about tradition. I guess being 67, I experienced growing up with tradtition but you did not, so it might take a while to get the pieces sorted.
How much do you know of the Vatican Council and the work of Archbishop Lefebvre? This is all important knowledge to acquire.
And of course there's the grace of God and the Holy Spirit to guide you.
God bless your efforts.