i think the best way to manage your money would be to just put it all into bitcoin and have no other currencies at all
that would surely be a great investment option and you would make a lot of money in the future because the price of the bitcoin will surely grow in the future really fast
Putting all your money in a single product will be very risky as we are not sure about the future of bitcoin so its better that we invest our money in different products to reduce risk.