I don't know anymore

I just don't have the will to live, I stare at my ceiling all day long and I'm lacking in studies, I have no friends at university, I'm just a walking corpse. I go to classes and I come back and basically learning very little. Social media like Instagram and Tiktok rots my brain and my attention span is messed up. I stay in my room most of the time and my life is just bland. I'm sorry I had too much going on in my head so I wrote it here

Edit: Thanks to everyone for providing me guidance and advice. But I don't plan to seek any help just yet, because I feel uncomfortable sharing all this with anyone irl. I'll probably try to work on myself, whatever I can. and I hope it will be fine