High school Lockers Question?

Hello, I just started my freshman year in High school, and my school is divided into "houses" (different parts of the school), and my locker is in North House, and is #500. We aren't allowed to go to our lockers during cl, and my lunch time is only a half hour, and I like to relax, and I have to carry so much books (5 pound science book, 6 binders, about 2 pound history book, calculator, ruler, lunch money), and I don't like lugging it around, it just makes me go slower, and I always get to my cles barely on time. Can anyone help me?