This is not a financial advice but when you're riding your Lambo... Remember me.
hehe, yeah this is one opportunity that people will regret not taking in few months, this is not stocks or anything that can be explained, in a month altcoins lost 500% in value, eth hit almost $1400 and now is $380, that is almost 400% and some alts lost 1000%, that is a lot of money, nothing really happened to bitcoin, from $17k to $7k, 60% crash is nothing really if you consider eth which is top 2 and had almost 80% crash.
My calculation is different, for example eth hit almost $1400 and now is $380 which 380 x 3.7 = $1406, which means eth lost 3.7 times its value whereas btc lost a lot less, btc right now is $6800 and hit almost $20k so meaning, 20000 / 6800 = 2.9 times lost since its highest all time value.