Getting emotional for your money is normal but minding it for so long isn't. Getting rid of your emotions while trading might broke you. The right way to manage it is to control it example trading dedicate yourself into giving you heart and mind to pick the best suited for you being emotional on your loss won't give you knowledge instead learn from your mistakes and strong dedicate yourself from learning and soon controling your emotions will be natural.
I agree with you. We should know how to handle our emotions during the dip because it might affect our decisions in trading. Our handling of emotions would also affect our decisions on when to sell our hodling so we should just keep calm during this kind of situations.