Can a 17 year old legally drop-out of high school with parental consent in california

I am a 17 year old who wants to drop out. I'll be 18 next month but I can't wait until then to drop out for personal reasons. Besides I am a super senior with 100 credits behind. Is it possible to drop out now with my parent's consent? If not, can I miss school for a month, drop out at 18 and not get a truancy ticket. I still plan on taking the GED once I can.