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
Losing is part of the trading, price doesn't usually pump, it sometimes goes down. But according to studies, those who hold long term gets higher chance of gaining profit. Short trader usually losses big amount. It takes loses to familiarize the trend of crypto. Even those who are well experience still loses profit. When doing trading, be ready to lose and only trade what you can afford to lose.