I'll save 5 BTC in the form of fiat and 5 BTC for investment.
why do I save most, because it's a savings, if something happens to my investment
yeah a lot of people say that do not use all your money to invest. because every investment have risk of loss. you certainly do not want to if all your money is lost because of the investment right ? so do not use all your money to invest dude maybe use a few percent only