Sure you do. You believe the Creed, the Bible, the Catechism. You believe the Real Presence. You believe Christ built a Church and gave it the Keys of the Kingdom.
Its not that we don't know what to believe, its that we don't know who to trust.
I trust my wife, and mom and dad. I trust my spiritual director, an old faithful very holy Passionist priest. I trust a handful of others. Only a handful.
I trust the Pope when he speaks as Peter. I don't always trust his or anyone else's prudential judgement. The Holy Spirit doesn't guarantee that anyone will be Divinely protected from making boneheaded imprudent decisions. Not even the Pope.
Keep believing what you know to be Truth.
Keep Trusting He Who is worthy of Trust.
Pray for the rest, do your best, don't worry, then try to be at peace.