Effects of Social Media Use on Young Adults' E-Cigarette Use

The goal of this clinical trial is to test the effects of social media use on e-cigarette use in young adults who use e-cigarettes. The main questions it aims to answer are: * Does reducing social media use change young adults' e-cigarette use? * Does reducing social media use change things such as young adults' mental health and what they see on social media? Participants will complete surveys and submit screenshots showing how much time they spend on social media. Researchers will compare young adults who reduce their social media use to young adults who use social media as usual, to see if their e-cigarette use differs.