When I look back at university now, I put in a ton of work to chase things I was curious about and I feel like when I had my first job and compared myself to the other new grads around me I had a very broad knowledge base which even now ends up being really helpful. I'd recommend tasting everything you can!

There are so many things to learn that you cannot possibly master them all (you probably won't find them all interesting anyway, or maybe you'll see a specialization you'll like!) but learning new skills and keywords to google later makes you really adaptable and feel more comfortable just diving into the unknown. Having a broad knowledge base also makes learning new skills later feel WAY less daunting- approaching a totally foreign concept in something like a MOOC is much less scary when they use words or concepts you've encountered before. (e.g. I didnt do any ML when I was an undergrad, but all the statistics I took helped me through the coursera ML course later).

Do internships- the real world is very different from school and you want to get exposure to it before it comes- it makes you far more attractive as a candidate when looking for work.

And make sure to surround yourself with other curious people, that's a habit that'll help you your whole life.