Social media, and especially popular youth-focused platforms like TikTok, can offer a valuable window into youth experiences, including their perceptions of online learning. Building on a large-scale thematic analysis of 1,930 TikTok videos posted in March-June 2020, this study examines how young people shared their experiences of online learning during the COVID-19 pandemic. Findings indicate that youth portrayed online coursework as overwhelming and relentless against the traumatic background of the pandemic. They sought support, empathy, and authenticity from teachers, and both received and provided emotional and educational support to peers on the platform. Students' home contexts emerged as particularly salient, making visible the intersections between young people's home, school and social lives. By facilitating a grounded, bottom-up understanding of students' experiences and perceptions--shared in their preferred spaces and modes of expression--this research stresses the need to attend to youth perspectives to craft more equitable and empowering educational futures.