YOU SAID:

i am attending a party where everyone is going to be high and drunk

INTO JAPANESE

私はみんなが高く酔っ払うパーティーに参加しています

BACK INTO ENGLISH

I'm at a party where everyone gets drunk

INTO JAPANESE

私はみんなが酔っ払うパーティーにいます

BACK INTO ENGLISH

I'm at a party where everyone gets drunk