Xiao Ke's first suggestion is that no matter which major you study, Xiao Ke suggests that you get into the top few majors. If you are not outstanding in your major and just want to find something else to enrich yourself. Xiaoke thinks you are wasting your time, because you don't prioritize. So the first thing you have to do is to do your own study.
Second, no matter what major you study, after you finish your major, I suggest you try to study some useful courses in the future. Auditing is the best and most useful for Xiao Ke. For example, you can try to learn more foreign languages or accounting, which is actually available in every university. You can attend the course and buy books online. You have to understand that only schools have free learning opportunities. After leaving that school, you need to pay for everything you want to learn and have time. So you might as well take another course.
Thirdly, if you have studied other majors, but still don't make use of Saturday and Sunday, Xiaoke suggests that you do some part-time jobs on Saturday and Sunday, such as distributing leaflets, such as working in the service industry, which are opportunities for you to experience the work in advance and let you know what the work is like.
Xiaoke studied accounting at first, and then went to major in administrative management, so Xiaoke had more employment opportunities than others when he graduated. So Xiaoke thinks that if he has time, he can learn one more major.