I am also trained as a therapist and have depression. Therapy really does work, it just takes time. I know what you mean about not enjoying life. It's just a horrible feeling and one that I can only describe as "the pit." Being spiritually natured, I know that this experience was meant to strengthen me and give me compassion for clients who suffer from depression. So that I can help others get through. I know its hard to stomach, but sometimes it gives you comfort to know that maybe it is for a reason.
I am a big proponent of therapy. I do not ever encourage anyone to rely only on antidepressants. I would love for you to look into something that I have been doing for myself lately. Its called Rapid Eye Therapy. It's spiritually as well as psychologically based and really has rapid results. The web site is www.rapideyetechnology.com. Look into it and see if there is someone in your area that practices. I really recommend it for someone who feels deperate and doesn't want to go the traditional route. Good luck and don't give up.