It actually surprises me that you bring this up, because when I look at the date you registered your account, you (in case you are still the same account owner) very likely have seen the market tank below $200 back in early 2015. Back then people said it's game over as well, and here we are. It's just another cycle we are going through.
$20,000 versus the various correction scenarios.
80% = $4000
85% = $3000 (my guess based on technical ball analysis)
90% = $2000
We're getting there.
I don't know how you're measuring it but you never measure the bull run from 0 but from its bottom. 2000 would be a 90% correction if we started from 0 in 2017, but we didn't!
Below 800 dollars it was almost flat trading. There was no bull run there and that price should not and is not considered in real TA. Also, the ATH is not 20,000 it's below 19700. However you look at it you're off by 1000 USD.