That was the dip and a very good opportunity. Sadly I already used all my bullets on some good alts which I think are a cannot be missed opportunity too.
Don't be sad, the good thing is you are able to sold your bitcoins and bought some good alts. Don't regret with your move, actually it's a better way to recover some of your losses from reaching the price of bitcoin at peak. Since most of the coins are on red alert, it's good that you have bought when most of them are on a fall.
This could be a lesson learnt in you end. At least you have your altcoins and we may never know, if could rise sooner than expected so that you can gain profit. But yeah the dip was good while it last because right now the price is above the $2000 and it looks like it will likely to stay. Hoping people bought while there is a dip.
I will always believe that the price of bitcoin is on a positive track that it will increase very soon. But we are currently experiencing this dip and of course as a person we have different point of views regarding this matter and it's up to you on how to avoid that feeling of losing some profit of yours. With that move it's really a profit saver.
such a large drop these 2 days looks like it will drop more soon since we are experience of large price increase this year I think is it ok to experience of drop,. and i think the movement of bitcoin still the same as before. and i think its ok too because our transaction fee is really increasing too when the price is increasing. 
