From my own perspective I think everyone has to be prepared to invest,even in the therms of down fall you shouldn't be discouraged in whatever you invested in, because the end points is the main reason you always invest your money.
You invest to make more money. If you believe in Bitcoin you can buy at any price because you will know it will go up again even if it goes down. When the price goes down and if you didn't sell you can always buy more
that's why you need to have some money in spare. A lot of pieces in the market goes up and down but one thing is for certain, it's that Bitcoin will always go up at one time. You won't bankrupt with Bitccoin, though you always have this possibility with stock exchanges or altcoins. Bitcoin is concrete strong.