As someone with a fairly confrontational style who has later grown older and more battle scared, I think you’re missing an important aspect of mentoring.

Mentoring isn’t about telling the person what to do, it’s about leading them to realize the thing you’re teaching on their own. Telling doesn’t work, they haven’t experienced the pain! Things you take for granted, they think are stupid. Because they don’t know!

Incessant questioning is a fantastic way to learn. The only other way than painful experience.

And remember, you are sure of your knowledge. To them it sounds like alien speak. They can’t relate.