It is not safe to use all the money even if you buy all the coins in the coinmarketcap because you don't know when the coins will rise. My suggestion is you need to search which coins that will increase by analyzing every coin especially for the coin which is on the top twenty list in the coinmarketcap. After that, you need to decide how much the money to buy that coin, don't distribute a big amount of money in one coin but diversify in many coins will be good because you will have a big chance to make a profit in many coins.