How's highschool in USA?

I really wanna know about highschools in usa, I think schools are cool here, so just tell me if it's like that or not. About my country, it's not well, ppl are acting weird there, they don't respect teachers or others or anyone, and also, nothing literally is clean, and no scientific experiments or advance technology in teaching, we just study like what ppl used in the old days. (I hope my English is well)