Anxiety is naturally higher in the morning for most people. (Cortisol levels are highest at this time of day)
Divorce is really, really hard! Despite it being my decision...I had a very difficult time during mine. It is not ever easy or something that you walk away from unchanged. I struggled with anxiety and depression from the loss of my first marriage.
It will not always be this hard. You will get through this, but it will take time and continued self help/care.
Both living in the moment (taking things day by day in small steps) as well as having faith that the future will be brighter is helpful.
"Courage is not the abscence of fear, it is feeling afraid and doing it anyway!"
"Worrying does not empty tomorrow of its troubles...it empties today of its strength."
Corrie Ten Boom
Panic Syndrome recovery due to CBT