I think that you have to believe in your destiny; that you will succeed, you will meet a lot of rejection and it is not always a straight path, there will be detours - so enjoy the view.
It's a question of why they come for your advice. Whatever I tell you, it doesn't matter, it is completely irrelevant in a way. I know so many actors who were discouraged and put that aside. You will get half-baked opinions.
The great thing about university is that they incline you to get up and do it, from the Classics to modern plays, to the humor that Monty Pythons made popular.