I think investing all your saving in cryptocurrency isn't a good idea. Even if you are living under your parent there will still be need you may have to attend to by yourself on regular basis.
It is not only the case of crypto currencies but whatever market you are planning to invest into, keep in mind that nothing is table in business.
We should keep in mind that always invest what you can afford to lose when you are just trying the market but once you are for sure about the market, you can invest much more like people are doing in the case of bitcoin. Bitcoin we all know is the best source of great returns.