Yes, welcome. It always takes the sting out of something when you discover that others are going through the same thing...or at least I think so.
I've been down this road twice. When I came off Zoloft for depression it took me about 9 months to lose the weight but I don't know how much you want to lose. I think it just takes time for the Zoloft to get out of your system and your metabolism return to normal but I will advise you not to just stop taking it. Take it from me, that is a bad idea. You should taper off and you can ask your doctor how to do that.
My doctor is also convinced that I didn't gain weight on Zoloft but to have gained as much as I have I would have to be eathing all the time and not moving at all and, of course, I'm not doing that. It is very frustrating. I had to travel for work this weekend and I saw all these "beautiful people" in the airport and I was just so frustrated, depressed and sad. I feel like a big plop of a human being.
You can lose the weight. It will come off. It did for me. Unfortunately I have to be on Zoloft until something better comes along for OCD. I believe more and more research about the effects of SSRI's is being done and maybe, finally doctors will listen when their patients tell them they ARE gaining weight on Zoloft.