AP Psychology on FLVS

For anyone who has taken AP Psychology on FLVS online, how difficult is the course along with how much it consumes? I’m a 9th grader taking AP HuG in school but have am now waiting classroom availability for Psych online. I plan on finishing this course before May for finals exams if I work hard. Another question is if i have to finish the first segment before my semester 1 ends in physical school? Or does it not matter and I’m able to finish both segments just as long as it’s before May? I asked to be placed in this course during Thanksgiving break but FLVS took a long time to accept me and I am now waiting availability. Will I able to finish this course in half a year through FLVS? I currently have straight A’s along with all honor core classes. Thanks so much!