I’ve seen this twice before... If you’re really thinking of selling, wait for a couple of days when it’s bouncing back. It could bounce back to 36k - 38k and give you a chance to sell at a better price. If it doesn’t... We’re f*cked anyway. Lawl.
That is the best thing to do I'd say. Rather than panicking what if you just calm down and wait for a bounce-back before selling, I don't think the bull market was over anyway, there are still a lot of institutions who are still entering the crypto market and invest. But if it goes down without any notice then there's nothing we can do about that, it is either takes the risk and sell before it goes down to the floor or keeps holding it till it makes its new ATH again(that would take a lot of time though).