CTH, good attitude towards finances. One that I adopted fairly successfully a few months back and it has relieved much, though not all, of the fear (and panic).
X walking away and leaving me straddled with this house has sunk me into a depth of debt I've never experienced before. When the house sells, my half of proceeds will get me out of that. Then, like you, "I'm on a new path and I'll just have to build from there."
Endure.
Gardener
"My soul, be satisfied with flowers, With fruit, with weeds even; but gather them In the one garden you may call your own." Cyrano deBergerac