Most CS programs skip the details of software engineering, such as Linux, command line, editors, IDEs. Maybe you can check out this course from MIT to get a head start:
Luckily I accidentally installed Ubuntu when I was in 6th grade because I read it would give me higher fps in Minecraft and it had an exe installer so I didn't realize it was a whole OS. I've been Linux only since then and learned all the other stuff there as a result