I am wondering if this is burnout…..?

I was always on top of my grades in high school. I graduated with a 4.0 gpa, and I was involved in a couple of clubs. I even got a medal for being recognized for having great character.

After I graduated and began college, things went downhill.

1st semester of college, I still made good grades. Not all As, but As, Bs, and one C, which I was satisfied with. However, I skipped class A LOT. Mostly due to me not wanting to go. Just not in the mood to go to class or just not feeling like going.

Second semester was when things basically just….collapsed.

I made terrible grades. I was taking 5 classes and I had F’s in all of hem except one? I got a D in that specific class.

I also wouldn’t take my medication to regulate my emotions.

Normally I cared and got upset if I missed an assignment. I never missed assignments. But one night, I procrastinated on my English project. I was going to start on it a few hours before the due date.

But at some point that night I was like

“Ugh I don’t care anymore”

And never even started on it. Dropped my grade to an F. But after that night, I started not doing my assignments in the rest of my classes. And those grades dropped a lot as well. I even withdrew from English class.

I would even skip some tests as well. I was allowed to make up a test I had in biology class, but I never showed up. And I KNEW I had to make it up. I purposefully skipped it and accepted the 0 on the test.

Also, I skipped 2 of my finals and never studied for any of my finals.

I hardly went out of my dorm room to attend to fun events or activities. I just mostly stayed in my dorm room. Mostly skipping all my classes almost everyday.

I am an 18 year old, turning 19 this August. I have AuDHD. It’s summer break now, and I have a job at Target, which I enjoy a lot. It’s easy.

I am wondering if all of this was burnout, or something else.

Edit: Also, I would wait months to even wash clothes, because I brought some many clothes with me to college. I would leave dirty dishes in my room for a few days. Even back home with my family I would do this even in high school and earlier. I would not keep my dorm room clean.