Teaching is a very noble occupation and I think teachers are very sincere people to their students. Once a professor said that

آپ کے ماں باپ کے بعد جو انسان آپ کا سب سے بڑا
خیرخواہ ہے وہ استاد ہی ہو سکتا ہے۔

And after years of experience, I completely agree with him. Obviously, teachers put every effort into encouraging their students. Because they want their students at much higher places than which they hold. Good luck for your future.