I agree, also a lot of times big whales sell part of their coins and this people panic sell their coins and the big whales buy again cheaper than they sold, you have to be really careful when you trade, it is really hard to understand what is going on with the market. I never sell when the price is going down fast, because the price always come up.
This is very difficult to handle. This is the most common problem that make the price of any coin dump.
Panic is our enemy and all investors know this but as always we can not handle what we think of. When the price bearish then many people sell their coin and its dumping.