Ok, I have a bunch of thoughts here....
1) If you were taking D-eca - ephedrine - caffeine - aspirin and testosterone enanthate, then you're not really stopping "cold turkey", those are long-acting esthers so it will take a few weeks for levels to drop.
2) You should already have had your P C T lined-up - basic rule when taking A A S.
If you don't have H C G, get it ASAP and run that first. 500iu ED for 10 days. Run your A-I with that as well until a few days after you're done with H C G.
Now this is where it gets a little controversial... I would stay away from Cl omid if you're experiencing depression. Cl o mid will make you suicidal. I wouldn't bother with N olvadex either. I suggest trying Dermacrine Sustain for 4-6 weeks. No, I'm not selling it nor am I affiliated. It's worked nicely for me and many others. It's a good alternative to C lomid.
3) Don't mess around with anti-depressants, especially if it's an isolated occurence of depression. As already suggested, get some 5-HTP, or trytophan. They will help.
4) Also as suggested, try to not be alone as much as possible. Work, see your family and friends, listen to up-beat music, even go for a walk where there are lots of people around. This helps.
Good luck!