I'm looking to do my last buy-in on the 19th right before futures close.
After that I'll wait until end of February or March to see how Q1 2019 shakes out.
That is a good strategy. Bear in mind that you should not cash out quick even if there was another fall of some dollars. Just stand tight and wait and now you know that Bitcoin has cane to the lowest of the year; you would either loose $3000 or would win millions.