I would have to agree with this. You don’t get your marriage convalidated in the Catholic Church if you don’t believe what the Church teaches. That’s kinda like lying, if you know what I mean, along with taking of the Eucharist if you don’t believe in all that the Church teaches.
I’m glad that you are here seeking answers to your questions about your heritage - your Catholic faith. If you’ve been away for a while, then of course you may find things a bit different that what you believe now. God wants us all to seek the Truth - and the Truth can be found with believing in His Son, Jesus Christ. Once you have that belief, though, don’t you think you owe yourself some clear reason as to why the Church teaches what she does? This maybe a time-consuming process for you, but you do owe it to yourself to research and rediscover your Catholicism to find out if it’s really true or not.
I was in the same boat you were…but before I jumped ship, I decided to research myself into the Teachings of the Church…and if it wasn’t for the Holy Spirit, then would not have been able to recognize the Truth when I saw it.