Until a decade ago, in another life, I was not completely open to these things. I was not totally listening. I was not completely seeing, I was not be aware. And, I sadly missed many grand things. And so it is in the world of academia.
Every student is valuable.
Every student starts with a clean slate. It's OK to be disappointed or even frustrated, but don't stop loving them as persons. Some have asked how I do that. With difficulty, I assure you. And, not always successfully.