Keep part of your money in USDT or USD, because market is unpredictable and you may want to buy more BTC or ETH when it falls down. Also, it's considered best to also invest part of money in ICOs, due to the high ROI. I support your choice of holding 60% in Ethereum, because as all we know it's a next Bitcoin
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
, but you may lower it till 40% to buy more potential coins.
Furthermore, try to buy coins that are not yet in top 100 marketcap, because they have highest chance to grow.