Delusion. That's what it is called when people search for excuses as to why the price is going down, because you clearly ignore what's actually happening. The same delusion I saw on Reddit last year where people were desperately trying to justify the drop in price to comfort themselves. Holiday sales it were, at least according to these people. Right, $20,000 to $6000 because of holiday sales. 
If you convert or sold your crypto into fiat you're contributing in the massive fall but if you don't you'll lose the price you currently have so what else can you do.
It's simple. Buy the market down and your averages will come down with it, which will preserve much more of your dollar value and help you break even faster. Better than doing nothing.