I was told that one pair should be enough when I first started trading, and I decided to go with EURUSD.

Then, because the pair often loses, a feeling of discomfort appears, so they decide to change pair, even though in reality it is not the pair that causes a lot of losses but a way of running the trade that is not correct so it cannot make a profit.

While demo trading you always try a variety of pairs and commodities to find out which one is most profitable, but for now it's back to the initial choice, EURUSD.