Welcome to the board...I would say it's a great place to be, but, well....
Like you, I got very determined to fix my marriage (in the last 1-2 yrs). I got the SSM book because of the title---I really felt starved emotionally and physically. That led to the website, reading more books, going to a MC, etc. We're a persistent bunch here.
The only thing I will add for now is that be prepared for a long process...some here have had immediate success, but for the most part it's two steps forward, one back, doing some things right, making mistakes, etc. It's always helpful to vent and there are some laughs here as well.