neurt....I was on an SSRI and had the same problem
Then I had the same problem when I was withdrawing from the SSRI.

I have been suffering with this problem for the last year..and the last 2 months I have suffered like you..up at all the wee hours...and for me I remain wide awake all day...and extremely agitated...

SO..now I'm not on any SSRI....and the last couple of weeks. I have been taking Magnesium Citrate..very relaxing (I take this during the day).

I also have been taking Melatonin at night and a gummy bear Melatonin that has Chaomile, Lemon Extract, Passion Flower and L-theanine.

I have actually been sleeping a couple of hours longer..and BETTER.
I also thought NOTHING in the world was going to work for me..and it has been.
The name brand of the sleep gummies is "OLLY".

I was willing to try anything.
Maybe you will want to try this?
Melatonin 5mg..and a Melatonin gummy.