archus
On water only fast you can expect to drop 1lb a day. While going to college and fasting, you will have a few challenges. One, your mouth will smell foul. Second, you are suppossed to rest and keep warm, which you will not be able to do. You cannot chew gum or use mouth wash. Chewing gums are deadly because most of then have aspertame, which knocks out the thyroid and magnesium in your body, that will create havoc in your body. Most people do not even realize that, I am talking from experience.
One week fast will be easy while going to college, but second week will be harder.
If you are insulin resistance, fasting will certainly help, but while you are eating, you will have to exercise. Aslo you will have to watch what you eat. You can read about it on Diabetes forum. Basically no processed foods.
Good luck, you are young you will bounce back quickly.
Archus