My first sprint demo went badly and I almost quit. Then my tech lead showed me his

I froze halfway through, staging threw a 500, and I said 'sorry, sorry, sorry' for two minutes. Walked out convinced I'd been found out.

Later my lead sent me a screenshot of a demo he gave in 2016 that ended with the app crashing and him saying 'well, this is why we have staging.' It didn't fix the nerves, but it made it feel survivable. Next demo I opened with the bug instead of hiding it, and it went fine.