I think your goal is way too aggressive. It's possible (barely) but I think that you're setting yourself up for failure and disappointment, because the closer you get to your goal weight, the less you will generally lose per week. Someone who is over 300 lbs could easily lose that, but you're under 200.
I'm 5'7 too. I've been at this for 7 months, and I've lost about 20 lbs. I've had some months of plateaus, and imperfections. I could have lost faster, yes, but I've built healthy lifestyle changes that are not chained to the scale. I can outrun my 16 year old niece!
I think you should set a healthy goal of about 1 lb per week... that would give you a slow, safe goal that's easily attainable. Some weeks you'll lose more, some weeks you'll lose less. My first 12 lbs practically melted off... it's been much harder to go from 199 to 190 (it's literally been months.)
As others have noted, you can't spot reduce the parts of your body you don't like. Believe me, if it were possible, I'd have the flattest stomach in the world, but I don't. I do serious ab work! I still look pregnant. ;)
Remember that true weight loss happens in the kitchen. It's important to eat ENOUGH to support your activity, while creating a healthy deficit to produce weight loss. Starving yourself while working your butt off in the gym is counterproductive, and will slow your metabolism.
And finally, those skinny people in the gym? Don't care about you. They're not looking at your, not thinking bad thoughts about you. They're focusing on their own workouts, and believe me, they don't care about the people around them. Don't worry about what other people think... it doesn't matter. What matters it that your need to be healthy is more important than ANYTHING they could ever think about you!
Writer, mom, runner (ish), and computer addict. Still trying to run my first 5k.
I'm not pregnant, just fat: My blog. fatnotpregnant.blogspot.com/
| current weight: 186.0