You need unqualified mentors.

If someone is able to mentor you, stop quizzing them to see if their advice is “worthy” for you or not. Very few people are likely personally offering to help you, and you’re likely not so inundated with helpful people that you need to start eliminating the people that have worthless advice because they’re not “qualified” enough.

You’re not that busy (that you can’t listen for a moment to someone wanting to help), people aren’t that helpful (that they’re going out of their way to help you personally), and you need to start taking what you can get. Listen to the advice you get, and if it seems bad then either: a) research whether they’re qualified to give you advice that seems wrong to you, or b) stop listening to them moving forward because it’s simply bad advice.

Most of the time good advice is clear and intuitively accurate after you hear it.

The exception to this is the legal system, because what’s illegal may not always make a lot of intuitive sense. Beware of tasks like this where you’ll waste more time in researching whether you should listen to them rather than just listening to begin with.

Make everyone your mentor.