Well, with all my experience since 2013, I was knowing and prepared for 24k... but after these last days, I can surely say to yu that everything is possible... I mean everything... 18k - 5k 
Some guys are talking about 5k --- and actually I think that its not impossible...
5k has always been possible — I mean, we're talking about the ultra-volatile bitcoin here. But if you're going to wait for 5k and it ends up not happening, what now?
Dollar. Cost. Average. Stop trying to time bottoms.