I've been seeing bitcoin suffered from holidays a lot and there is a proper explanation on this, since yearly it always happen.

First of all since December - January are the most anticipated holiday of all months the moment we hit BER months crypto are more likely to suffer since most of the traders are converting their assets into fiat which only leads to a massive fall of crypto, no matter whats upcoming event is or any news regarding cryptocurrencies it always seems to fall in the 4th Quarter of the year specially on December, it cannot be prevented so as a holder it is better to let go of your assets before the fall happens September and October are the best month to start analyzing the price.

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.