Things I wish someone told me during my college days
There are so many subjects to learn in Computer Science Engineering like in other branches of Engineering which seems overwhelming and students learn, complete semester exams and move on to the next semester where they get new set of subjects to complete.
On the way to this long journey, if they don't get proper guidance they just read, learn and get new subjects in new semester where they forget about topics and subjects they learnt in previous semesters. However, there're few subjects or learnings that we must know to become a good engineer. So, here are few advices :
As a Computer Science Engineering student, we should learn first how to write a program? so learn that and practice with your preferred programming language. As a part of the syllabus, first we get to learn C, so learn that and try to learn a object oriented programming language after that which will help you to understand OOP concepts with some other benefits - like library and framework. These libraries will help you to learn and use already implemented data structures. Once you know basic programming, start learning about data structures and algorithms which will help you to be a better programmer.
Projects are really important to showcase that you know how to do development work which you will be doing in your entire career. So, for that you can start with basics of web development, build small small projects and whatever projects you build, keep the source code of those in GitHub. I would recommend to take some good courses from Udemy on front end and back end technologies which will improve your development skills, also you can build your own ideas by using those learnings.
There are few core subjects that we need to know to prepare for interviews as well as to become a good enginner, subjects are Operating System, DBMS, Computer Networks. You can think that questions related to these subjects might be asked in any interview throughout the career. If you are done these 3 subjects then you can learn Compiler Design, Computer Architecture, Automata...