This is what that cost me blew a lot of my trading capital. Always wait for trend direction and follow the trend , As they say... trend is your friend until it's finished.
You'll always get to see people giving their predictions on how it's going to be look like for the next trend based on what they see in the charts. It's true that trend is our friend and we get to know how to react on it immediately.
With predictions, it's okay to have it as long as you have basis. Baseless predictions, they're the ones that shouldn't be one.
Greediness can reap you off all your profits already gained from the market when you're trying to gain it all. Be comtempted with the profit you've got and have plans for profits taking.
This is one the biggest challenge I faced during my early time of trading and even now but it's reduced and controled.
If you are in profit, take it and don't wait for the market to take it from you.