it will be totally insane if you put all your money in one place. Try to split it into many parts which you can use for many purposes and many investments. I have spent my money to many cryptos and earn a good amount with that
Whether it's holding or investment, just make it diversified. Even if you feel you get a good earning from a investment plan never investment entire earning. This has the increased chance of making your wallet empty. So diversify and invest, so that if something goes wrong the remaining will help you to be secure.
Not all, of course only a portion in bitcoins and some are in altcoins maybe 60/40 share on all cryptocurrency. @Duzter is correct here when he says diversify. We do not know the market movement, we may gain on others and losses on the on other. Also, invest in real life stocks or engaged in business. The more you spread your assets, the more opportunity you have.