It didn't drop that much. Its current price is hovering around $18700, though it dropped as low as $18200 yesterday. Its peak before that drop was about $19400, so it corrected by 6.2%.
That's a significant drop, but not that huge in the world of cryptos. It's quite low actually, considering the insane rises we've gone through over the last few years in the crypto-world.

To be honest, no one knows how much it'll go up/down, but I think it'll be anywhere between (& around) $18000-$21000. I feel like it's not gonna rise a lot, but it might hit just above 20k.

I hope it's gonna stabilize though, that'd be the best thing to happen for it to be accepted worldwide as a currency for daily usage.
Sadly, that's probably not gonna happen. We're gonna keep these spikes.