Model answer
Written by 8020 teachers. Do not memorise it — take the structure and the way ideas are developed, then speak about your own life.
I'll talk about a university debate competition I took part in during my second year, an inter-university tournament that ran over a weekend with teams from about a dozen schools. It took place roughly five years ago now, in a fairly formal setting — a proper auditorium with judges scoring on structure, rebuttal, that sort of thing. My partner and I had to argue whatever side we were assigned only twenty minutes before each round, which meant building an entire case on the spot, finding evidence, and anticipating the other team's arguments almost in real time, which was honestly more stressful than any exam I've sat. I remember one round in particular where we were assigned a position I personally disagreed with, and having to argue it convincingly anyway taught me something about separating what I believe from what I can construct a case for. We didn't win the whole thing, in the end, we got knocked out in the semi-final by a team that was frankly sharper than us on rebuttal, but I performed better than I expected going in — I stayed reasonably calm, made my points clearly, and didn't freeze the way I half worried I would beforehand. Looking back, the result mattered far less than I thought it would at the time; what stuck was the confidence that I could think on my feet under pressure, which has come in useful more times than I can count since.