I errored when I accepted two thechnical interviews on the same day - in person, same city. The first went well but it drained me much more than I anticipated

I errored when I accepted two thechnical interviews on the same day - in person, same city. The first went well but it drained me much more than I anticipated and I had no brain power left to function. The second interview was harder, some leet code problem I never encountered before and well... they did not call me back :D it was 10 years ago and I still have frustrations over it. Horrible. I just want to put down that memory and forget about it.