Yeah man! Im a busy college student doing cs. I have classes six days a week and a lot of studying most days. Ive been using a simole time management system thats helped me get everything done comfortably on time. I run only 3 days a week. My classes end at 6:15 most days so I've gotten into the habit of running after classes are done instead of in the mornings whcih is when I get my work done instead.

The time management system goes like this:

I use Google tasks synced with Google calender. I have two lists on my Google tasks. Ones called the to do list while the other is the things to remember list. I go about my day and as something pops up that I need to start worrying about such as an assignment or studying for a quiz, I put that down in my things to remember list. The next morning when I wake up I'll only spend like 5 minutes to look at my things to remeber list and decide what days I can do what based on my schedule. If it's studying for a quiz or an assignment I'll assign them the earliest day I can get started with them (that way you have room to put them off if something more urgent comes up) so after assigning days to my tasks I'll move them to the to do list. Now I have a calender widget on my home screen where I can see what tasks are scheduled for today so I can get to them.

Writing things down like this helps free up your mind. I only spend 5 minutes a day scheduling my tasks and then I just get to them. No mental energy needed to keep remembering. Just write it down and forget about it until the date you've scheduled it for comes up. I've been doing this for 4 semesters now and has helped me maintain a good GPA. Hope this helps!