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.
Many factors affect price changes, even rumours can make the market chaotic, which is why in-depth analysis is carried out both technically and fundamentally. I have a friend who has been a trader for a long time, even though he has a lot of experience, good analysis, does not mean that he can profit at any time. Especially when there are news and unexpected events, the market moves not according to predictions. My friend always reminds me that being a trader requires experience and mentality.
Loss is one of the risks of being a trader, if you are afraid of losses then you will not be able to develop. So as much as possible learn the right techniques and strategies, do not rely solely on luck, let alone trading signals that are not clear.