I will recommend to ladder in to trading gradually, start with minimum capital that the loss can be condoled. As the investment increases more fund can be added, as well looking for profit at any opportunity. It has always be advised to split the investment into at least 5 projects especially from low risk (bitcoin and Ethereum) to high risk (new ICO projects).
There is no dispute in this and I think their should be no need to split funds to trade because of fear or phobia of getting loses. A true trader is always prepare for the worse and this most time trigger the confidence of a trade to finally end in profit without having a change of mind. Trading requires skills not just huge amount that can be lose within minutes in trading if the trader does not understand the system.
Sometimes a trade does not need a huge amount of money for one have good profits. Everything starts from small, how you can manage a small capital and build it to a large amount definitely increasing perfection and good trading psychology. I'll will rather get a small capital and raise it to a substantial level which is better than, using large funds to trade and definitely losing it because good trades are not based on amount of money used.