Could you please tell me?

I recently learned that you can view other people's past posts from their profiles 🌹 I can't find my own past posts though? Where are they? I went out to the free board for the first time in a while today, and suddenly I got anxious wondering if I had said anything embarrassing in the past 😅 Since I put on a different face elsewhere, I'm also curious about the big reveal of 'Ojou-sama's' secrets.