This is too common to many people they fall prey to Greed. Greed is the worst enemy of humans but those who set their goals when to book profit can easily overcome greed. In my own opinion when you open any trade set your hit points and when the price hits your planned goals book some profit and book some more when the price hits another goal in this way you can overcome greed. It is a challenge for the traders to have the best control over their own greed.
If we trade greedily, it will be very unlikely that we will be able to make the right decision in the trade we are making and this will also be very detrimental to ourselves, we will incur a lot of losses if we do it greedily.
Yes, it would be very good for us to have a plan before starting to trade and when we have reached the target we have set we will be able to take advantage of the trade so that we don't analyze again and continue to hope for the profits we will get in trading so that we have missed the benefits we have gained.
When trading becomes too unfavorable, we should leave trading and relax maybe go and chill and have a good time with ourselves.
To make money should not be forced, so we have to plan ourselves and keep working on new strategies or adjusting to make sure that we can make money from the market. When trading looks like it is becoming hard for us, we need to make sure that we keep working on learning more about how to trade without becoming a loser.