Have you ever done something that good sense would tell you not to do? You knew it was a stupid decision but you went ahead and did it anyway? I can’t tell you how many times I did.
Having the right knowledge doesn’t mean you’re able to make smart decisions. No one will look at your life and say he/she had a lot of knowledge instead they will say he/she did or didn’t make wise decisions.
In these days of information overload Knowledge is easy to obtain, what is needed is wisdom. Seek out wise counsel, not people who are only full of knowledge.