Omg I feel ya. I started out ahead in math taking algebra 1 in 7th grade...then had to take in 8th grade...then had to take it in 9th...then I finally got to take geometry then I tested out. Culture shock might be an exaggeration but I went from mountains to coast to country and everything in between and I just remember the kids being completely different. My clothes always looked stupid compared to what they were wearing, different slang, different curriculums, etc. It also made me realize how where you live affects your education. I went to VERY wealthy school districts and they were soooo far ahead or everyone in terms of tech and what everyone was learning. Then a few months later I would be in a lower income district and they would have old, outdated textbooks and no computers.