Inappropriate use of Instagram social media and the habit of accessing it excessively can have bad effects, one of which is addiction, mental health disorders (loneliness), and disturbances in self-control, which are categorized as social media disorder. For an individual who is in the emerging adulthood phase and is experiencing loneliness and has low self-control, this is thought to cause social media disorder for Instagram users. This research aims to determine the influence of loneliness and self-control on Instagram social media disorder - in emerging adulthood. This research is a cross-sectional quantitative study with a purposive sampling technique where 314 emerging adults were recruited. The measuring instruments used are The 11-item De Jong Gierveld Loneliness Scale, Brief Self-Control Scale, and Social Media Disorder Scale. The data was then analyzed using multiple linear regression. Based on the research results, partial loneliness (t count = 4.887 > 1.649) has a positive influence on Instagram social media disorder and self-control (t count = -1.674 2.63) with an influence of 12% (R2 = 0.120)
