My Cousin Beat Me up for Plagiarism, and the Witness Was My Mother

Various interviews and live broadcasts promoted me as an Internet celebrity, and I became famous for a while. At this time, my cousin broke the news on his social media account that I had plagiarized his ideas and works. His evidence chain was complete, and my mother testified for him, instantly causing an earthquake-like internet storm. Everyone called me a shameless college student and a shameless toad. The jury disqualified me from winning the award, expelled me, and all team members were punished. But he could always quickly come up with works that were exactly the same as mine and helped me get into the Chinese Academy of Sciences. Until I was starving to death, I couldn't figure out why this happened? What's the problem? When I open my eyes again, I go back to a few days before the group competition.