I am quitting smoking tomorrow. i have some questions. such as, how well does the gum help with withdrawal?

It helps a lot: I have switched recommending the gum to the lozenges and patches. The "gum" is really a highly dense and viscous material that can actually pull out fillings and cause dental problems, but people with good teeth tolerate it and sometimes like the oral "workout" they give. A 2mg piece of gum or lozenge is equivalent to one cigarette. I usually recommend patches with use of lozenges for cravings.