This place is less about being immoral and more about being free and able to talk. I would say most of us are happier since leaving, and it's less about sinning and more about following the natural course of your own life, without the dictates of a marginal religion. Some of us are actually more spiritual than we used to be. Doesn't sound like that will be your natural inclination, which is ok.
You sound depressed. I'm sorry your marriage has taken a downturn. You followed the typical witness pattern, baptized young, married early. It's a lot of heavy life altering decisions at a young age.
Do you have kids?