That’s a normal crash because it fails to break the trend of a symmetrical flag the price touches above the flag but it fails that is why it crashes but it doesn’t mean it would crash more it might be just a retracement and it might retest the $71k again or it might continue to drop but still inside the symmetrical flag.

If you are investing in altcoins or tokens then they would also drop because it’s dominated by BTC. That’s pretty normal if you do believe in that project why would you sell instead of buy when you see red keep buying or do DCA then hold and sell it at the right time don’t sell it if you don’t make any profit.