I have noticed that working with SBHSAM on a home project does a lot to bring us closer. We get to see something come together that will last; it makes us feel like we are building on the future because why else would we be doing it?
Also, you mentioned something about how you cannot tell "when times were better." Instead of thinking about if times were ever better, think about what you were doing when you felt that you were making progress; both as an individual who was regaining self confidence after being hurt so terribly, and as a couple where the goals were the same: save the M. It's not a step back...think of it as reiteration or reinforcing what you have already accomplished.
Please be proud of all you have done!! Get that PMA back up, young lady!
Finally, go do something for yourself. Take a break, post haste. Go visit someone you haven't seen in a while. Be kind to yourself and take care of you! Okay?