Welcome to the forum. If you have not yet done so, I recommended reading the sticky threads at the top of each board. There is a mine of information on diet, nutrition, fitness, motivation, and more.
You ask about losing weight quickly. How much do you want to lose? When I started losing weight, I was actually concerned about losing *too* quickly because I heard the faster the weight comes off, the easier it goes back on. I lost about a pound a month when I started, although now I am losing 4 or even 5 a month.
Good luck!
