Sorry you have experienced such a sleep disturbance.

Have you been in contact with a mental health professional?

Do you have a therapist or pdoc?

I hope you are on or will be on a plan of therapeutic treatment that will help you reach your goals and resolving your current situation in the most positive way. I am sorry you are suffering.

Is your current job situation stable enough to take leave time. This would be a good reason for a therapist to assist in such situations with you.