It is good from one side to be focused but not obsessed. Forex is dynamic environment and there are some interesting moves on the market that could bring you additional profit. However, I do like the idea of focusing in one pair and keep exploring new instruments.
I completely agree with the written here, this is a great article. Afterall the market dictates what is going to happen , we can’t change the outcome of trade or the price. However, our job is to react accordingly and we could choose what exactly to trade, when to trade and exit a trade in order to get better over the long run