I think that it is better to diversify the assets that you trade. along with currencies, I also trade cryptos which are really nice assets to trade if you know how they behave and how to use risk management. I am strongly convinced that money and risk management are the key things which will make you preserve the money. I like cryptos for their volatility. Whatever happens, cryptocurrencies are always in the move and you have the chances to reap the rewards if you react in an efficient way.
Yes, well said not keeping all the eggs in one basket is the best for of diversification and less risk exposure.