YOU SAID:

I think the when the drums are loud, I am confused

INTO JAPANESE

ドラムがうるさいときは戸惑うと思います

BACK INTO ENGLISH

I think I'm confused when the drums are noisy

INTO JAPANESE

ドラムがうるさいときは混乱していると思います

BACK INTO ENGLISH

I think I'm confused when the drums are noisy