[hkt]

Being absolutely serious, I think you may be having a mental health crisis. You describe burnout, feelings of unreality, deep seated anxiety about both the present and the future, as well as a lack of enjoyment in things which you imply you liked before.

I'm not a doctor, but I've suffered with mental health issues in the past. You strike me as someone in the midst of clinical depression and anxiety, and (relating to the idea that nothing is real in particular) like you might have early signs of psychosis.

Please get help. It is not the big deal you think it is: SSRIs, therapy, and lifestyle changes (relax a bit!) will help you see this. Things will be OK, but you're clearly struggling right now. Making a post here was a good idea, but now it is time to take stock and consult a professional or two.

Good luck, and look after yourself.