A well-known passage in Proverbs says this:
Trust in the Lord with all your heart,and do not lean on your own understanding.In all your ways acknowledge him,and he will make straight your paths. (Prov.3.5-6)
This is a key passage (from a key book) with respect to the difficult & life-long task of learning wisdom.
What does wisdom look like? A few hints we're given here: we're warned against leaning on our own understanding. Of course, that's not the same thing as using our understanding. Our God never tells us "Do not use your own understanding."
But he does tell us "Do not lean on your own understanding." There is a difference between using & leaning. I don't necessarily completely trust the things I use. But I do completely trust the things I lean on.
Part of wisdom is leaning on the Lord. Trusting in the Lord. With all our hearts. And from that standpoint, we're then called to use our understanding.
But what we foolish, unruly children of Adam have a natural bent towards is leaning on our own understanding and using the Lord.
That's just the opposite of wisdom.