Oh wait, I get what you mean, the stock market crash of 2008. The RE "crash" around here followed which people often cite as a buying opportunity, but it was 2 weeks long and only on paper.
I was fully invested during and after the 2008 stock market crash. I invested my house proceeds at the top of the market and got slaughtered, but nobody in their right mind sells low. The markets did nothing for roughly 8 years, but there's a tiny, tiny uptick in my portfolio.
In terms of the house, it sounds like you didn't take the boomer's advice to "buy what you can afford, save a good downpayment" or you were born a few years earlier than me. Congratulations.