Sofia, wanting to be organized and prepped for the chances hitting you as you enter college is a great idea. For a lot of students, it can be quite a change from their high school experience.
Most colleges will encourage the use of an organizer and calendar to carry with you daily. You can also download a version on your laptop or tablet from the college's site. I liked in my day, and my sons found later, a paper version was handy to have for quick entries and noting assignments. They would then take those notes and transfer to their online versions for further organization and planning. They could look at expectations, what was already due, projects that were pending and could plan out how to get everything accomplished on a timely basis.
You will usually get a handout or online list at the start of each course from the instructor with the timeline of projects/tests and any reading assignments on Day one of the class. Enter those to your calendar as well and if you are using an online version, set up alerts or reminders for items you want to not forget.
You hear the stories of all-nighters to finish papers or cram for tests, but though not to say there may not be long nights or that one test you have to keep studying for, my best advice is to just stay on top of assignments and try to work on papers or reading assignments daily. Putting off something you don't like, or you feel you can "get to" in college is not the best approach. For a lot of students, the difference in grading structures can be a surprise too. Standards can be tougher and whipping something up quickly won't give you the best results. I also recommend scheduling studying time in your calendar. Plan a time each day for courses based on when the classes meet. Keep to this to stay on top of reading, review notes, peck away at a paper assignment. If you keep to that, even if nothing BIG or a test is pending, you'll feel less hassled.
Keep folders or binders for each class to capture handouts so you aren't searching through stacks or one folder trying to find items. Each class should have it's own notebook or online folder to keep notes together for easy access. Save Save Save when keeping your info online and transcribe notes you take right in class that evening or no later than the next day. It is a handy way to re-learn what was discussed plus keeps you timely and your notes clean and ready to be used for test studying.
Hope some of this helped. Good luck!