..so you seriously believe that you will be saved as a member of a group? That the RCC is group salvation?
Do you believe you are alone, that what you do has no effect on others and what they do has no effect on you? What of the prayers of the righteous? What of our intercessions according to St. Paul?
We are not saved as a group, but we are not alone, ever. Unless we separate ourselves in our pride, or in thinking we have to figure it all out for ourselves as individuals.
No, as Christians, we are one body. What we do, good or ill, affects the whole body. How we treat each other, what we do or do not do for each other matters. This is as Christ taught us. He emphasized it in His commandment. It matters. It has significance.
If you stand before Christ having lived your faith as if it were all up to you alone, solely your self in your individualism, then I believe you will truly be alone in that moment. I don’t wish that on anyone.
It is not your task to take Scripture and decide what the Christian religion or your religion is. This is not what Christ intended for His Church.
You are not alone with the task of determining what it all means, what is the true faith, the ‘correct’ decoding of the Gospel; Holy Scripture is not a puzzle each person must solve for themselves.
Again, this is a sad and needless choice you are putting yourself into on your own, to create or discover your own religion. I know, I have been there.