Emotions do play an important role in trading and investing. Fluctuating prices affect psychology and I think if we don't have a good trading and investment plan, we can panic and sell our tokens at low prices.
But if we have a good trading plan and invest for the long term, I think we will get profit as long as we hold the tokens.
Emotions in trading and investing is the same as gambling. The same frustration is in gambling not to lose and to win. The biggest scare is when the coin starts to dump hard. I had a problem a few days ago that i couldnt sell the coin and i knew it was gone a drop and i didnt have enough to cover the fee too sell plus the fee was too big.