I majored in information security. I feel that I haven't learned anything since my sophomore year. I'm determined to go the way of the headmaster. How can I get there?

An experienced senior tells you that the school curriculum only lays a foundation for you to know a little about all aspects, and then develop according to your own interests. If you want to find a job, you need to attend the training in the university, such as java, or big companies don't want others to require graduate students to have project experience, so you can study the school courses seriously, especially mathematics.