You need to time the crash. If you're off, it could still crash and you could spend more money sustaining the position than you'd make. Or you could end up getting margin called, not just by semi-impotent private investors as Michael Burry was, but by the platform you're trading on itself. "You've lost too much money so far based on the current valuation, so we're going to seize this option and you'll owe us the balance". Trading at high leverages with Daddy's money, people on /r/wallstreetbets sometimes get margin called and end up owing much, much more money than they put in.
Before putting any money in, make damn sure you're able to write at least a 101-level summary of the different types of trades.
I did this in February 2020, and then bet a modest amount on the proposition "People keep saying that COVID isn't going to be a big deal, and I think they're very wrong". I still managed to lose out because I didn't foresee the Federal Reserve bombing the market with freshly printed cash. I lost it all. But what I didn't do, is end up owing millions of dollars I don't have to the brokerage, because I stuck to buying put options rather than selling call options or shorting stocks outright.
Timing aside? To what extent the Federal Reserve would intervene in an NVDA price collapse is an open question, because at this point a collapse in AI investment would threaten the solvency of entirely unrelated financial institutions.