I know it sounds daunting, GG, but there are fits and starts along the way and the good stuff begins to outweigh the yucky stuff. My wife and I had a wonderful "honeymoon period" for a few months, then some tough fits and starts, and things got slowly better over the next 6-24 months.
It takes awhile to destroy (or near-destroy) a marriage; it takes awhile of hard work to piece it back together. But it's sooooo worth it! When I look into the face of my happy granddaughter (another one on the way!), or see my family gathered for a NOT split holiday, I realize that all of our hard work was worth it!