YOU SAID:

I need to quit immediately and go on vacation for the next 5 years

INTO JAPANESE

私はすぐに辞めて次の5年間休暇に入る必要があります

BACK INTO ENGLISH

I have to quit immediately and go on vacation for the next 5 years

INTO JAPANESE

私はすぐに辞めて次の5年間休暇に行かなければなりません

BACK INTO ENGLISH

I have to quit immediately and go on vacation for the next 5 years