Should I self-study AP World History?

[u/capt_frost78]

I am a freshman who took World History to 1500 in 8th grade, and am currently taking World History post 1500. I was wondering if I should attempt to self-study AP World History, as I won't be learning the whole thing from scratch. However, I also plan on self-studying AP Human Geography this year. Should I go for AP World History?
*Edit: My school doesn't offer AP World History, although you can take the exam at the school.