Sorry - just saw this.hope you got through your night ok.....
Best advice I can give is just let yourself feel it. I spent a lot of time trying to dull the pain, because I thought it would be more bareable (drinking/eating/ tv/ telling myself to get over it etc). When I learned to just sit in my room, Undistracted, and let myself cry fully and feel it all, it actually helped to 'get it out' and there would be a cleansed relief after...
I also had a fantastic therapist, who I saw once a week. He helped me know it was safe to grieve fully, establish new more self-assertive boundaries with my ex, and also helped make it a time of rebirth and growth and learning.
I had a few wonderful friends who I got lots of support and hugs from
And I had my daughter, who was my North Star through all of it. I was so determined to get out of this in a way that meant she and I could have a good life... and to deal with it in a way that wouldn't cause her more distress than absolutely necessary.
Everybody will have different challenges. In some ways I was very lucky - I was financially independent already with a good career - that gave me really good positive reinforcement during that time. For me, the huge issues were physical self esteem, having been left for a younger woman by a man who had never truly valued me, but I had thought was the love of my life.... the huge betrayal and lack of answers (we had always seemed happy and he had never once spoken to me about any discontent)...My lack of experience too (had never been with another man or really dated! - I was terrified!!), and the whole expectations of my life being turned upside down.....
But you really do get through it..... after the initial shock, I thought of it as a blank canvas I had suddenly been given- and I got to choose what to paint on it! 😀