. . . "And Samantha Bonilla, who lost 40 pounds when she was a high school sophomore living in Holbrook, N.Y., is marketing her self-published Teenage Survival Guide to Losing Weight (Llumina Press, $15).Here are some tips for high school kids from Gamm and Bonilla:Money is a subject that everyone is going to have to deal with, no matter what field you are in, Gamm says." .