Now you’re just being silly.
The Catechism is meant to TEACH Catholics about what’s IN the Bible.
How could it be “better” than the Scripture it is trying to explain?
I would further note that the Bible is the divinely inspired Word of God.
The Catechism is not considered to be divinely inspired, nor is it the Word of God except where it’s directly quoting the Bible.
Because the Catechism sets forth Catholic teachings, explained in the context of our time and culture.
Remember the Catholic faith is based on Sacred Scripture AND Sacred Tradition, so the Catechism also explains and interprets Sacred Tradition for us. We’re not a Sola Scriptura church.
Also remember that Catholics are encouraged to read Scripture, but NOT to iinterpret Scripture themselves. People trying to interpret Scripture on their own has led to a huge amount of wrong ideas and many Protestant churches breaking away from God’s One True Church. The Catechism provides the official teachings of the Church based on the correct interpretations of both Sacred Scripture and Sacred Tradition.
As for how you yourself are supposed to use what you read in it, it’s pretty easy to do if your mind is actually open to learning what Catholics believe, rather than you just wanting to read a Bible and decide on your own what God meant by A, B and C, while ignoring Sacred Tradition.