This is a relevant topic nowadays there are a lot of people right now as we can see right now because of the downtrend of the bitcoin there are a lot of people getting feared to lose their assets and what’s the cost? they sell most of them just to save their money but again if you are not having a strong belief and hands with your coin have it’s hard to get back on track. Once you make an investment its better to make a background check, check the market trend, analyze the graph and more possible data that might give you an information about the coin you want and you have avoid getting a speculation of other people they cannot survive your coin its all up your decisions.

Yeah, those are the pretty close feelings or emotions for any trader. I think whether it small investor or bigger whale they will shake their hands when market is going up and down with that much fold. Small investors troublesome because they have less money to trade and are always afraid to loos even that much. On the other hand whales would shake because they have huge amount of money invested and small up and down in the market makes mega change in their investments.
So yeah like you said, planning and execution of goals is very important here. It would be always advisable to learn technical analysis chapters, self control and how much to invest.