Hi David
You're not telling what approaches you have tried to get rid of your problems. Have you tried anything beyond regular conversational therapy?
There are several ways of dealing with these problems:
One way is to see that all thoughts and emotions are just projections and not who you really are. You can start to see through them, stop believing them. This is very difficult, but I believe it's the only ultimate solution. Bellemeadows has written more extensively about it in these posts:
I've been dead inside for over a decade. help?
and
I've been dead inside for over a decade. help?
Another way is to deal with your emotions and release them. Depression is usually caused by too much emotions that are 'stored' in your body/mind system and that keep popping up. There are several great techniques that can help with this. I've been in regular conversational therapy and it helped me a little to get clear in my head, but other forms of therapy and PD prooved much more powerful.
It's very hard when life feels like an endless tunnel without light. I wish you all the best!