I am a freshman this year, majoring in information security. I don't know how to plan my freshman year.

C++ is the most basic professional course to learn well.

Equally important: sophomores and juniors have a data structure and an operating system database structure.

I want to teach myself something after class. I don't know what to study. . . Learn this C++ well in freshman year.

Don't think that these basic courses have nothing to do with your direction, one day you will find that they are related!

I don't know where I'm going.

Your professional information is safe until junior year, and then see which direction you are suitable for.