much of the getting past the wrung out feeling is down to personality and mindset I think...unfortunately there's no magic bullet.
For me, things started to change (in me) when I resolved to get a plan and get active in my situation - in the beginning I allowed myself to feel like a victim and held no power - I felt "done unto". When I got a plan - and I had lots of false starts, I tried to stick with it for a couple of weeks - a plan needs time to work! and also I threw myself into exercise - got signed up for some events so I had to follow through...
And I took time to read many of the archived posts and success stories on this board - the active posters are just great but they're all pretty much, in one way or another at a similar spot to you or I - I needed to look at the journeys of some folks who made it...that helped a lot with my resolve.
I haven't told my wife that I am waiting/working on our marriage of late - although I made this pretty clear to her early on - I wouldn't do so now as this would likely put a great pressure on her - but anyone who is looking at me and how I live my life would see that's what I'm doing...
So, nothing magical I'm afraid...
KBO - GFI
Me: 40ish W: 40ish Together: 20 ish years Married: 10ish Years