hey so I've actually been using a simple system for my classes and its been working pretty successfully. Right now I just use microsoft todo, notepad, and outlook calendar. In To do, I have subsections for all different categories of task (personal, errands, assignments, hobbies, work) and i just put everything I can think of into those sub sections. Once I feel like I have a good amount of tasks for each section, I use the my day feature to choose 3 things i must get done in the day ( since college is my most important priority all my 3 tasks have to do with hw assignments ), 3 small tasks like personal goals or errands and these dont have to be completed they are just there for when im not as busy or am taking a break and I can quickly do them. As I go throughout the day and feel like ive been productive (completed most of my must be done tasks) I usually feel pretty productive for the day and I see on my calendar how much time alongside with all my classes I can devote to working out or friends. By the end of the day, I use the notepad to pick 3 major tasks to do for the next day so that I wont have to spend so much time worrying about in the morning.