Make sure you take the PSAT! If you don't, then you won't have a chance at all to get the national merit scholarships! (you can only take it your tenth grade year I think). Every $750 a year helps. Talk to your counselor if they haven't said anything about it by late september

Take a look at your chosen school's ap credit lists and try to take the classes that will eliminate as many core required classes that they like to dump on freshmen (this is usually calculus or english) every successful $80 ap test is $200 or so saved on a course taken! and a semester saved timewise. (if your school pays for your ap tests like mine did, even better)

You don't have to worry about the FASFA until your senior year, and I'm sure people will go nuts about it then. So I guess just find a steady job if you're worried about not being able to find scholarships. You really won't have to worry about anything besides the PSAT until your junior year.