1. Don't take all CS classes. Try other subjects and diversify your knowledge. 2. Get good at sending emails. It can help you get a job, get contacts or just gather information. 3. Even though you should take non-CS courses, that doesn't mean you should get a double major. It's not always worth it. 4. Make sure you like CS. Having experience is a good sign, but people can be advanced or good at a subject they don't like. Make sure you like it even when it gets tough.
[1]: https://blog.torchnyu.com/2020/03/04/take-fewer-cs-classes.h... [2]: https://blog.torchnyu.com/2019/12/19/sent-from-my-iphone.htm... [3]: https://blog.torchnyu.com/2020/05/15/the-case-against-double... [4]: https://blog.torchnyu.com/2020/05/14/do-you-like-it.html