Everything is increasing in value hence if you keep storing that your money. It won't grow and that's how you'll be short of money always because the world had appreciated in things while the value of your money remind the same. You go broker holding money but increase in wealth when you're investing your money into different things.
The things mightn't be cryptocurrency but provided you're making a profit then continue investing because you need money to live a comfortable life everywhere. Fiats always depreciate while investments appreciate your money. When you can't look for opportunities to invest then you can put your money into things like Bitcoin that doesn't need much stress to make money.
That is right, even if you bought pack of gums, the resale value would be higher than just keeping it on fiat. There is no reason to keep your money on fiat at all, that is the worst decision. And bitcoin, even though it won't go up as much as it used to, is still a better investment than anything else.
Because of this, we need to be careful and we could invest into bitcoin as an asset and do better job. I know not a lot of people believe in this, but it should be a very important case for us. Stocks, real estate, gold, none of it would bring as much as bitcoin in normal cases. Of course I am talking about the average return, you could make more in some unusual way in others in unique cases, but for majority of people, bitcoin is the best.