Bright student doubting potential

DEAR HARRIETTE: I have just started another semester at college. So far, it has been decent. The courses I am taking are a bit more challenging, but at least I have really good professors.

For the fall semester, I received straight A’s, and it boosted my GPA. I have been stressed out lately because I am having second thoughts about my potential. I know that since I did well last semester, I need to…