if you want to invest it, you have to take the risk. but save money is not a good idea, i believe.
Saving with yourself is not a bad idea , if you're saving in a bank , you're only losing money because of the high inflation situation. It is better to put your money in a good and reliable investment like bitcoin. Of course you have to risk it to get the biscuit. But sometimes you have to lose something to gain something. risking some security for more possible money in the future is a better option
You seem to contract yourself there and use some bizarre logic. You might lose purchasing power due to deflation over time with fiat but you can also lose it due to crashes with bitcoin. In fact you could lose it all so why take the risk of losing everything when nothing is guaranteed with bitcoin? A better option would be to diversify or don't put all your eggs in one basket.