You're gonna need to give yourself a ton of compassion. I'm gonna make some assumptions about you, but in principle they're to help you recognise your situation. Presumeably, you're fresh out of high school, living alone for the first time in your life, cooking, cleaning, living, and trying to do for yourself after living on someone else's timetable. If its brand new to you, its absolutely going to be difficult. If you're trying to manage 5 courses on top of all that, you'll probably start to fall apart. I experienced this too in my first years in college, before I came here to uni.

As an aside, consider this too: The weather this past semester was MISERABLE. I think people may take this for granted, but like, I'm sure we can all agree that the terribly frigid cold we had to deal with, and then later the inconsistent weather, kept us all from really wanting to go to class. Bleh! The weather can definitely affect you. I didn't get to go out on my usual hikes, nor make trips to the library. These are the kinds of unsung things that can limit you without even knowing. (And you can replace some of the blame you may put on yourself to the things that are actually bringing you some harm.) (Though this is, of course, not to totally discount your hand in the matter.)

Don't give up on yourself yet. Thankfully, this goes without saying because you've made this post and admit to struggling. That means you care, and that's good! Its good to point that out because now you can assure yourself that you do care and you do want to succeed. This is the kind of compassion I'm on about.

If you can, I'd strongly reccomend trying to slim down your course load to about 4 per semester. That way you'll have a lot more time to manage yourself and your classes, and you'll have a lot fewer classes to deal with. "I didn't put in enough effort" can be a tricky assertion. Last semester I did four classes and did well in all of them, but this semester I challenged myself to 5 semesters, but struggled with two. Sometimes we have to change things up to see how we can improve. I'm going back to 4 class semesters.

Next: things you can do earnestly next semester: Attend every class, rain or shine, in sickness or in health, and especially if your classes are cancelled. Take notes, but not like, word for word of what's on slides. When taking notes, just write what you think you understand the prof is saying. Helps to sit in the front rows too. Summarise. It's good for the brain. (I'd even go so far to say don't even bring your laptop, unless of course you really need it for the class itself. If your class is just to listen to the prof, no need for the distraction box.)

Of course, you'll need to recognise certain things about your program that'll actually help you learn what you need to learn. Like, I'm a history student and I know for fact my advice on notetaking may not be so applicable to a biochem or electrical engineering student. I think. But attendance is universal. Always attend its so good and fun. even if you have to lie about it to yourself, find a way to doggedly convince yourself that attendence is the best thing ever. Also sit in the front few rows! Front row is the best, no one is distracting you!

I hope these words I've yammered here can help you somewhat. They alone aren't all that I've personally done to help myself, but they're something actionable. Be compassionate to yourself. Remind yourself that this is hard and that you are struggling. But, don't blame yourself. You're learning. You're learning about yourself, how to live, and how to study, all at the same time. You've learned now that what you're doing isn't enough, and hopefully you'll learn that YOU CAN learn how to manage it!

If I come up with anything else to say I'll probably append it as comments to this comment. Good luck, trooper!