I want to get over him

I am so sad all the time.  I am now in the depression part of this whole process.  I really liked the angry part better.  I just want to feel good again.  I don't want to worry about being alone I don't want to be that kind of person that can't be happy being alone.  I am not really alone I have great friends and family, but I want to be with who I thought my husband was or just to find someone who cares about be and wants to be with me.  I don't want to feel this horrible feeling of loneliness.  I want to feel good just to be out of a marriage that was killing me and making me feel like I always had to be on guard to see if he was still doing his activities and lying about it.  I want to be happy.