I never recommend BTFD because for almost a year of waiting, the market clearly shows the average declining that when you buy the dip it dips even more so i suggest that we should observe more the market for a couple of months or until we see that the price is stabilize to the new support level.
Its because the market is going irrational and when you thought that we have reach the lowest point, whales or speculators will continue to sell causing the price to dip more. But what can you do? Buy more or just wait? So it really depends on how you look at your investment then, doing short or long term?
Right now I don't see any support levels but $3K seems to be holding but I wouldn't be surprised if manipulators wanted to play more games in the next coming months to challenge that levels and see the price going down further.