Crypto currency investment na risky kind of investment, because Several risk dey associated to this kind of investment, crypto currencies dey very volatile, come dey make crypto investors more vulnerable to losses, but most persons no dey reason am , them invest in am heavily and most of them done cash out, and still most of them still loose money, crypto investment fit profit you or fit make you loose money before you close eye open, because the price fit climb or drop before you close eye open. It is better to take the risk, but take the risk responsibly.
I don't think there's any such thing as a responsible risk. Risk is a risk. Unless you mean taking risks with the right knowledge and all. Risk means you are ready to lose or win from the start. And about Bitcoin, that's how all investments are. From just buying land to company shares, stocks, etc, they're all risky.
Life itself is a risk, and we play with the odds every day. Trying is a risk, not trying is also a risk. I guess how you win or succeed just falls under what risk you choose to take and what losses you decide to make yourself vulnerable to. So, don't be scared of risks or to risk. According to the number 1 law in investments, "the higher the risk, the higher the returns" and then the number 2 says " the greatest risk is the risk of not taking any risk"
So, take risks, instead of being scared of them, fail, and get up. That's how it has always been.
lack of knowledge don make plenty people to lose their money in Cryptocurrency, they no get the kind of motivation they need in a crypto before they begin to invest. I believe say Cryptocurrency investment risk dey involved but as you talk am, make we no risk am to invest the money wey we go need to fix problems later, we should invest any spare money wey no go affect our plan for the future. 
