"I have already got used to the life in Indonesia"
Have Already: Sudah
Got Used: Terbiasa
to: Terhadap / Dengan
The life: Kehidupan
in Indonesia: Di Indonesia
Saya sudah terbiasa dengan kehidupan di Indonesia.
howevere, you can also say"
Saya sudah terbiasa hidup di Indonesia.
"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"