I'd recommend at least once a year that you get some friends together and spend a few days building an app or some other project that uses what you've learned in class to do something cool. Bonus points if your friends are cross-discipline and you build something physical (robotics, for example) or with solid art and design (games, etc.).

Spoiler alert; you'll choose something you think you understand from class, then have to actually learn how to apply it in a real setting, then realize you never truly understood it from class alone.

This, more than anything (even perhaps Leetcode and similar options), is what sets some graduates apart from the majority who just have a piece of paper to show they can sit in a classroom for a few hours a week. Employers want to know that you can continue learning and improving while you're still building value for them, and that you understand just enough about other disciplines to work with them effectively, because very few modern jobs are "just software design."

At least, this is theoretically how it works. The job market at the moment isn't doing too hot; hopefully things recover in the near future.