"I have already got used to the life in Indonesia" I: Saya Have Already: Sudah Got Used: Terbiasa to: Terhadap / Dengan The life: Kehidupan in Indonesia: Di Indonesia so: Saya sudah terbiasa dengan kehidupan di Indonesia. howevere, you can also say" Saya sudah terbiasa hidup di Indonesia. additional note: "Hidup" as a verb literally means "to live" however in Indonesian, when you said "Hidup" most people will understand "to live a life" even you do not put "Kehidupan (The life) after hidup"

In Bahasa Indonesia your statement will be "Saya sudah terbiasa dengan kehidupan (sehari-hari) di Indonesia"