This proves that even experts can be wrong, trading does not always produce profits and sometimes we will also experience losses even if this also applies to experts. My advice about whether you sell or hold, it's better for me to hold it because some issues regarding the end of the year are bullish, just wait until the end of the year, even if there is no bull sign then it's up to you want to sell or not.
This teaches us lessons to make our own decision, I was once losses my money in the past because I am too reliance on the trading signals
giving by experts, at first I made profit but it's easy that time because we are in the bullish period, now that we are in the bearish trend, the price are very unpredictable so our chance to make a profit is very low as well.