I was simply too bullish, and I truly thought Bitcoin would never crash down below $50,000 again during 2021.

It was a VERY MASSIVE MISTAKE to have that sort of hubris, and that overconfidence.
NEVER AGAIN. Although I truly hope we would never see Bitcoin crash below $100,000 again.
It is normal to be too bullish based on the understanding and knowledge we have about Bitcoin with including the benefits involved been its holder. However, we should also tell them the consequences involved in being a holder since market volatility will always come into play.
Ignoring the prize holder and investors paid to achieve the benefit of BTC is the reason why some newbies believe BTC is a pot of gold.
This remind me when I told 2 of my friends about Bitcoin before BlackRock ETF, I introduced to them in a bullish so they could be serious about it, and I also them the volatility aspect of it, luckily her investment in BTC was double she decided to take profit by selling the fiat rate of her capital while she still 50% of the BTC she bought.
Through this experience she had, I won't be surprised if she's eager to accumulate more BTC at deep in the future.
Having said that, every time BTC is bought is good, even at the current market price, since 1 BTC = 1 BTC. And, the waiting can lead to disappointment, just like we see in some years ago when some people were waiting for the price to go below $20,000