In everything that you'll do if you are in deep panic or fear never do or make decision for you might regret it in the future. I guess most of us have tried making bad decisions specially when we do panic selling. Panic selling is very common to emotional investors. Those people always tend to panic sell the coins that they are holding because of huge dips. In order for you not to become an emotional investor you should spend some time to research about the coin or token that you want to invest your money in for you to have faith and believe in its technology. Lack of knowledge about the technology that you invested will always result to panic selling.
I've been an emotional investor few years back. Sold during huge dips and regretted when the market starts to recover which is always the trend and just a normal cycle of the market. Right now when I see bloodbath or huge dips from the market I just ignore it and try to hold on to my coins or tokens which I believe most. I know that sooner or later the market will correct itself and will go back to an uptrend which will make me more profit.