Working through this nightmare

I was together with my partner of nearly 10 years.  The last five years of our relationship were not so good.  We love and care about each other deeply, but were not romantically connected.After three breakups and back togethers, we finally decided to call it quits in May of 2009.  By August of 2009, we sold our house we owned together, and went our separate ways.I am now struggling with different issues that I never though I would go through.  I am starting to feel very alone and depressed.  I feel as though I have to go through the whole "coming out process" again and that I am alone at fighting my own battles.  I feel insecure, and not worthy at times.  I know that we broke up for a reason, but I am finding this battle to be challenging and do not know how much more I can take.