How long would it take to lose 5 pounds and weight 135?

That depends on how much you eat, what you eat and how active you are. It can take all from a week to a month, more or less. All I can say is that you should NOT try to starve yourself and not eat anything at all. Your body will just go into a "starvation mode" and use less energy (and burn less fat), and you'll feel more tired. You should eat healthy food (carbos are healthy!) until you're not hungry, and you should work out, like run some miles two or three days a week.