I have not seen a trader that do not lose sometimes, i may be new to the forum but been learning before now. it has nothing to do with sentiments but traders have to learn to accept trades the way it is, without attributing loss to any factors; as it leads to more rekts.
Always accept the market as it is without blaming any factors.
Always dyor too
I'm not into the trading well I used to but not anymore, but news and existing events have a factor on most of your decision to trade, following events and circumstances is also one good parameters to decide on the right time to buy and to sell, the markket react on a given situation.