Pat,I understand as I have the same feelings as you do when I am going through a tough spell. It seems our biggest fight in life is staying strong and not giving in to our emotions when we are feeling sad and depressed. Many times in my life I have felt alone even in the presence of others.
I was diagnosed with clinical depression 30 years ago. I do know that situations can trigger my depression but I will never give up the fight to move on through my anxiety and depression. In 2006 I had a major meltdown and decided to take early retirement from my job as I felt all my problems were "work relate burnout". Much to my astonishment this decision made things go from bad to worse as all my friends and social life was attached to my job. These people that I loved and cared about, who had been such a huge part of my life for 26 years moved on and I was left devestated - all alone with no friends. I grieved for years over my loss and did not know how to make new friends. I am learning to accept life as it is now but on bad days I feel so alone that it is hard to keep on moving.
After I retired in 2006 I lost my siblings, 2 sisters and a brother in a 17 month time frame so that sent me deeper into the feeling of being alone in the world.
Now I spend most of my time home alone when my anxiety spikes as I fear leaving home or looking for new friends. I also fear the loss or abandonment that may come with taking a chance on making any new friends.
I am glad to know you are getting out and realizing you do not want to live in what feels like a prison. I have much faith in your strength to get through this bad time. I am going to post a link to a video that explains the difference between situational depression and clinical depression. I want to believe that your experiencing situational depression and that your anxiety and sadness will get better.
http://psychiatristscottsdale.com/depression-situational-vs-clinical/
I suspect once your Citalopram kicks back in you will start to feel better and the symptoms you are having will dissipate.
Food for thought - You cannot get back to your old self again as the past cannot be relived but you can become a new you, a strong, happy and confident person who has been through a tough time.
I wish you peace,
Kitt