Traditionally, the fear of missing out is prevalent in many aspects of life, including trading. When trading, it is easy to convince yourself that there is a better time to get in and wait instead of getting in the trade now.
If we have that mentality, there will be many times where we never enter the trade at all.
It is better instead to have a defined entry/exit point. In our style of trading, we generally wait for a one standard deviation move and fade the direction, if we are right, we take it off at a half-standard deviation move. If we are wrong, we also take it off when the underlying moves a half-standard deviation.