Make a list of activities you used to enjoy or need to take on but can’t because of all of the time you’ve been spending online. This isn’t meant to make you feel bad, but rather to provide motivation for cutting down on your Internet usage. Unlike some addictions, total abstinence may not be the answer for Internet addiction, since the Internet is used for so many purposes in daily life. However, you can and should decide on an appropriate amount of time to set aside for personal Internet usage.  Omit any time that you must use the Internet strictly for work, business, or school. Make a list of all of the other obligations you have and desired uses of your time, such as sleeping, time spent with friends and/or family, exercise, commuting, working or studying, etc. Determine how much time per week you would ideally devote to these needs. Consider how much time you have left per week, how much time you want to set aside for relaxing or personal use. From the remaining time, set aside an appropriate number of hours for personal Internet use. You can then apply this information to other methods to cut back on the time you spend online. If Internet usage is taking up too much of your time, you can block the problem by filling your schedule with alternative activities. Disrupting your schedule with neutral activities can break the habit. For example, if you find yourself compulsively browsing online at home every evening, change your schedule so that during that time you go to the grocery store, clean your house, or some other activity that will keep you away from your computer. Having someone or something interrupt your Internet use can be very effective. Since the stopper is external, it will take some of the pressure off of you, and it can also lead you to fill your time with alternative activities.  You can set an alarm clock to go off at a certain point when you think you should get offline. It might be difficult at first, but stick to the goal. Plan necessary activities or events so that they will prevent...

TL;DR in Indonesian:
Catatlah hal yang terhambat akibat kecanduan Anda terhadap internet. Tentukan target waktu yang tepat untuk menggunakan internet. Buatlah sebuah jadwal yang baru. Gunakan bantuan eksternal. Tentukan prioritas. Hindari aplikasi, situs atau kebiasaan-kebiasaan yang bermasalah. Gunakan kartu pengingat. Berolahraga.