Confused about what im supposed to do

I lack motivation these days. I don't enjoy anything and I can't stay focused. My mind keeps wandering and it doesn't help that I have exams coming up. I don't enjoy music as much, or games, or reading, or drawing, nothing at all. I've tried looking for new hobbies which I immerse myself in but lose interest after a few hours or a day at most. I don't have much people to talk to or talk about my problem with. My exams are my most pressing issue because I'm really behind in my studies but I can't seem to focus on more than a page a day. It's frustrating. I wake up everyday feeling this impending sense of doom, and I have to calm myself by breaking down how simple the tasks of the day are and how it's not all that bad compared to bigger problems in the world. I think about how if I fail it won't matter how I felt or what I was going through, all that matters and all people will know is that I failed. I think about this a lot, but it doesn't help.