Exactly why self-interpretation leads to chaos.
Yes, I find it odd when a protestant asks for infallible Catholic teachings.
So perhaps you would answer the questions of 164,
1. Is perpetual infallibility essential for discerning, understanding and preserving faith? And for providing assurance of faith?
2. Who was promised perpetual infallibility in interpreting Scripture?
3. How do you know this for sure?
4. How many texts of Scripture has your church infallibly interpreted?
5. Are Protestants excluded from ever correctly interpreting a part of Scripture without error?
When you can and will answer these then get back to us.