Chinese have developed a significant amount of sophisticated tools countering internet censorship. V2ray as far as I recall is the state-of-the-art.
To use them, one need to first rent a (virtual) server somewhere from a foreign cloud provider as long as the payment does not pose a problem. The first step sometimes proves difficult for people in China, but hopefully Indonesia is not at that stage yet. What follows is relatively easy as there are many tutorials for the deployment like: https://guide.v2fly.org/en_US/
To use them, one need to first rent a (virtual) server somewhere from a foreign cloud provider as long as the payment does not pose a problem. The first step sometimes proves difficult for people in China, but hopefully Indonesia is not at that stage yet. What follows is relatively easy as there are many tutorials for the deployment like: https://guide.v2fly.org/en_US/