How do I get out of this situation where I don't feel like studying or doing anything else??

As I said how do I study when I'm not feeling like it but I have to cause I'm preparing for university entrance exam. I'm too tired to study but too short on time to stop.

Wasted all day feeling like this. How long do I have to fight? Why am I even fighting? What if I fail again?(It's my 2nd attempt) I keep asking myself these questions.

I'm not usually like this at all. Yeah I get tired but never felt this down. I feel like I'll suffocate to death. It's like I'm stuck between moving forward and stopping forever. I just don't know what to do😭