I missed to buy bitcoin when it dipped to $9K. Then I missed it again at $10k thinking it might go down to $9k again. And now, I am waiting for $10k but it seems that it will not go below $11k again. I must be the biggest idiot in crypto world 
You can see that we have witnessed another dip to $9k yesterday and another opportunities was provided. Currently you can still buy as bitcoin is a bit above $10,000.We should not just look any price movement as opportunity because that is the major reason why people lose there investment. If bitcoin keep going up there is always nobody buy and vice Vasa but the up and down provide opportunities for those that what to buy cheap and sell high.