"The number one thing is to get out of your head this idea that gets passed around in the self-help world: “go get a mentor,” and everyone runs out and cold calls someone that’s ridiculously too high and unachievable, and it doesn’t work. For all those people who are really out of reach right now, I call them aspirational mentors — create a persona of them, just like I was talking about with the dream job folder. Get clips of all the books they’ve written, podcasts they’ve done, interviews they’ve done, and study them. You can learn a lot from people without talking to them directly, especially in the modern age. And then for your real mentors, go two levels down from where you thought you were going to aim. Discover somebody — tools like LinkedIn make this so easy — and be the first person to ever call them and ask them to be a mentor, because they’ll be flattered. They’ll be flattered that you knew who they were. Imagine anyone getting their first call to be a mentor. It’s a great feeling. You’re going to have way more success with that interaction than shooting too high."

The article title is misleading because it doesn't really get into career safety. However, the bit above regarding mentorship is actually really good, practical advice anyone can apply, including introverts.