You will change by encountering people, places and possibilities that you never previously considered. Now, be assured, that developing from a young student fresh from secondary school into a young adult prepared to make a mark in the complex world to which you will graduate is not easy. It is not even comfortable. Development is always hard, often painful, and in some cases, even worse. Consider the prayer of a woman who ended up learning the lessons of personal and spiritual development.
Patience is a byproduct of tribulations.
I will give you blessings. I will give you life so that you might enjoy all things. Because you are made with a free will, development is entirely up to you. In grade school and to some extent, even in high school, you may have been spoon-fed the academic necessities you need to succeed in the world. In college, however, what you learn is entirely up to you.