sorry to hear this, it's a horrible situation to be in. about 8 years ago I began suffering from depression and anxiety and a combination of therapy and drugs helped. i have had 2 major relapses since- one caused by a bad break-up and one by work stress. i got through them by returning to therapy and also by looking at how i managed to get over my first "episode". i reckon that since i got over it once i can do it again. i have been on my medication for the past 8 years, i tried to stop a couple of times but had nasty withdrawls and felt the anxiety and depression returning. now i would say i lived a "normal" life- i work, socialise, have my own place etc. but the fear is there that it will return. i am concious of what it feels like if i am starting to go down again and adapt my life accordingly- like i may see the doc and change my med dosage, start taking it easier at work, look after my self better etc.
the good thing is that you are aware something isn't quite right and you are going back to therapy. i am sure it will do you the world of good!
hope this helped a bit! xxx