Need to lose weight fast....

Buy a time machine and start sooner.

If your life actually depends on you losing weight quickly (for example, you need a life-saving surgery but can't get it until you've lost X pounds), then that's something you need to have your doctor and/or a registered dietician guide you on.

Otherwise, everyone's right. Weight loss doesn't happen overnight. I go at an unpopularly slow pace (8 pounds in just under five months at this point), but the loss is steady and I feel good. Depending on how much you want to lose, you can expect anywhere from 0.5 pounds - 2 pounds of loss per week. Sometimes at the beginning you'll have an unusually large drop, so don't let yourself think your advanced speed is going to last for the entire journey.

If you'd like some non-snarky answers that don't involve suggesting you hack off an arm, you might want to provide some info: height, current weight, goal weight, why you're in such a hurry, what you've entered into MFP (sedentary? Lightly active? 1 pund/week? Two pounds?). You can't really expect helpful answers when you've provided very little info.

Love the picture, @tincanonastring