Focusing, studying, and not procrastinating

No.12285232 ViewReplyOriginalReport
Please help anons.
I used to think people who just couldn't sit down and focus were lazy or retarded, but somehow I've lost my ability to just sit and study for hours on end. I procrastinate now when I used to never do that. I've completely fallen out of my University studying routine and abuse covid to avoid work and study. I've fallen behind in my understanding of classes, and am left only with a Rollercoaster of motivation.
I have no idea why this happened. I used to be an extremely disciplined straight A student, and this has just fallen apart. What the fuck do I do? How do I recover from this shit? I get depressed instead of working and want to chase easy dopamine.
What do?