How can i lose 10 lbs or at least 5 by saturday

Losing weight and keeping it off is a lifestyle change, not a temporary diet. If you are looking to make the change, I'd suggest reading a great article called Lifestyle Changes, Not Diets, Are Key To Losing Weight that was published on Medical News Today. I think it really sums up the important aspects that most people need to change to successfully lose weight and keep it off. The three points I spend extra time focusing on are portion control, drinking lots of water and making exercise a part of my daily routine (even if it means taking the stairs instead of the elevator or parking my car further from the entrance of a store/restaurant).
I hope this helps.

I know this is too late, but I'll put in my 2 cents worth incase someone else needs to do that. Try eating just raw veggies, green, orange, red only, no yellow or white stuff. No breads, no mayonaise, no dressings, no creamy stuff, no gravy, no rice, no potato products, just Brocolli, carrots, celery, romaine lettuce, peppers, and a little olive oil (or a Greek olive oil dressing is ok without feta cheese) No dairy either. Jello for a snack or treat, Lots of water or zero calorie drinks (coffee, diet drinks ). Don't eat it all at once, snack on them throughout the day. Graze... and praise at the end of the week.