I think there 2 types of expert traders. First type, always show winning trade and never talk about their lose. This type, sometime they are not real expert but just want to show off and get more fame for their personal purpose. Second type, the real expert and most of them did not show off and always analyze for everyone why they are losing.
We cannot consider it as expert if he only showing his winning trade, professionals are also experiencing loss in the market because we should remember that losses are inevitable but those professional are only have small losses because of their risk and management. Not all times that our biased will happen, there are times that our bias can be againsts us.