I'm sorry things are so hard for you. I don't know you really, but my advice is that if you were having doubts and have thoughts that you want to save your marriage, then you clearly do not want to get divorced. People who are honestly happier and better off divorced didn't have an doubts, and its clear deep down that you want help, and that's a good thing. Whatever free counseling you can get by all means take it. Sometimes its something simple, sometime's its something deep rooted but whatever depression you have is likely on the surface. Don't let that ruin a good thing, there is always hope. Never forget to ask the man upstairs for help, for patience, for the strength in yourself to do what you know is right