Of course you do - she tells you in every scene.
I've never seen such a weak, unrealistic gimmick played up so much and so unironically.
Seriously, the main character's superpower - and they treat it as a superpower - is that she was a high school guidance counselor. Somehow this gives her the insight to crack tough cases that seasoned, experienced, highly-trained, long-time agents can't.
That's the premise of the show. Former high school guidance counselor shakes up the FBI because of her experience as a former guidance counselor.
Did I mention she's a former high school guidance counselor? Well, she was.
Have I said too much about it? I haven't said as much about it as she does in a typical episode.
If you want to hear how the main character was a high school guidance counselor again and again and again and again, this is the show for you. If not, you might want to find something else to watch.