I've been on Zoloft numerous times due to many of the stresses I have faced. I have also taken myself off it for various reasons such as I haven't felt I need it anymore, or I couldn't take oral medications.
My suggestion is to consult your doctor who proscribed it. Most likely you will require tapering off slowly. Changing metobolically quickly is very dangerous. You go from one whole pill every day to every other day for two weeks, then to one half pill, etc.
You can get depressed really quickly if you don't do it right. Consult with the doc.