Tap the YouTube app icon, which resembles the red and white YouTube logo. This will open your profile's home page if you're logged into YouTube. If you aren't logged in, enter your email address and your password before continuing. It's in the top-right corner of the screen. A menu will open. You'll find this near the middle of the screen. It's near the bottom of the "YOUTUBE" section of options. On Android, you may first have to tap the General tab. Find in the list the country you want to change to, then tap the country to select it. You should see a checkmark appear next to the country. This arrow is in the top-left corner of the screen. Your settings will be saved. Changing your YouTube country will only change the order in which some content is displayed. If you want to view videos that are blocked in your region, you'll need to use a proxy.

TL;DR in Indonesian:
Buka YouTube. Sentuh ikon profil. Sentuh Settings. Sentuh Location. Pilih negara. Sentuh.