When someone tells you Bitcoin is a bubble.
When you make 10x in a month.
When you read 2 tutorials and watch 3 Youtube videos on technical analysis.
When you FOMO like hell.
When you see a breakout after a long bear run.
When you saw your portfolio in the second half of December (2017).
When market is moving sideways for a while.
When some expert tells that your favourite coin will dip soon.
When you research a coin that you think it has a huge profit potential.
When you take the profit after a good long bull run.