If you got a 2400 through hard work, why didn't you work harder at school? Other kids have been working hard for 4 years. You suddenly wisened up and realized too late that you need to work hard if you want to go to the best schools.
A 3.7 GPA isn't bad, but a 2400 kid definitely has the ability to do much much better.
Were you (one of) the best student in your teacher's class? If not, expect good but not stellar recommendations.
If your school is stupidly hard and you're still top 10%ish, or if you go to one of those pipeline schools (not likely since you live in SoCal), then ignore what I said. I apologize. If you're top 10% with a 3.7, it's not too big a deal. If you're outside top 25%, you're screwed unless you have a hook and Harvard really wants to bite.
PS did you ever score 2400s on practice tests?