um...you can't lose 14 pounds of fat or anything in 14 days. Due to your very restricted caloric intake, you probably lost a couple pounds of fat, but you mostly lost water weight. This is only good if you were retaining water. Also, protein is not what fuels your body when you do long sustained activity. Do you see bike riders or runners eating steaks? No, they eat carbohydrates. Complex carbohydrates such as whole wheats, vegetables and fruits. Also, I wouldn't recommend lowering your calories that drastically. You say you should be eating 3600 calories, that is at your current weight I presume? Try calculating the calories you need to intake at your target weight and lower it very slightly. This will not lose you weight as quickly, but it will help you to keep the weight off in the long run, which is your goal. Lowering your calories to 1200 puts your body in a state of semi-starvation and your body compensates by lowering your metabolic requirements. This means when you do begin to eat normally, you will not only gain all your weight back, but you will gain extra, becuase your metabolic requirements (the core of your caloric intake) are lower. Just some thoughts. 
