You didn’t want an honest biblically informed answer. You trust yourself and the traditions of wicked men, not Scripture.
If that the best you can do? I pointed out places in the Bible parts of the Rosary come from. Just because you were not able to derive it on your own through your own examination, does not mean it is not there.
You have failed to explain how I cannot trust my experience that the Devil flees before the Rosary. I suffer significantly less temptation and commit sinful acts when I keep it faithfully.