I am a believer in btc since 16 months now
So, i agree the crash is a correction. Nonetheless, people get hurt everytime.
Worst case is you borrow 20k from bank to invest, put in bitcoin because it only goes up and up. Next day it crashes your money is 15k worth, you sell...
Now you have to pay 5k yourself.+ interest probably 2k on the loand.
Total fail.
So, safest way is to reduce deendency on any asset. Not mote than 50% in crypto. Crypto, not more than 50% in altcoins
Or face the inevitable: you may loose big time