I am struck by a line in your post that your husband wants a divorce because he can't make you happy. No one can do that sweetie, it's up to each of us to find our own paths to happiness. I agree with skinnycow that you should journal, get some counseling to deal with depression,the stress of your family life, and to help you learn to cope with the issues. It will take time, but hopefully all of the above will help you find out what it is that you need to be happy and fulfilled.
Good luck .


Shiny!