Hang in there. This is a normal part of the grieving process. You need to let yourself experience these feelings. Just don't let yourself wallow in them too long. I am right with you in this process. I am also feeling hopeless regarding any possible R. I don't speak with my W, or even communicate via text or email more than every couple of weeks.
Personally, I think it is okay to be hopeless about the sitch, just not hopeless about yourself. You need to focus on working on YOU, not the MR, not her. The farther I dive into the depths of this process the more work I see that I need on my end. I certainly don't want to assume anything about you, but I bet you would discover work you could do on yourself to improve as a human being (forget being a man, father, husband).
Trust the process.
W 34 Me 42 Married 7 years together 8 0 kids 1 beloved dog BD 4/6/2018 I moved out 4/7/2018 I moved back in alone 8/05/2018 I file 3/06/2019 D official 5/7/2019