Op i really feel you need to see the doctor, get some antidepressants, explain how citralopram made you feel and they'll prescribe something different, they'll lift the fog a tiny bit at a time until you feel a bit better, they can really help, depression really is a horrible illness, you say its a catastrophy of events that have made you low, that's how depression starts in some people, other people just get it randomly, it doesn't follow a specific type of person. I agree with the pp, find a hobby, don't worry about a job just yet, It'll only add to your stress. Find a hobby that gets you out of the house, a knitting club or exersise class are usually good ones. That way you'll make new friends too. Make your task today to ring the doctor, just tell the receptionist you feel its depression, the doc will want to see you quickly, if you cant face getting out today, make the appointment for tomorrow, that's your challenge tomorrow, get up, get dressed, go docs, done.
I suffer badly too, and recently been given meds, I don't even think I spoke to my doctor, I just cried, I may have mumbled prozac.
I find one task a day makes me feel like I'm accomplishing something.
And that i'm not so hopeless/worthless.
I hope you can do this op.