Definitely you should hold most of your coins (way too early for "the crash", and BTC has survived much worse), but it is not a bad idea to hedge.
If you sell and get your principle back, you won't have terrible regrets no matter what happens. In fact, if you sell some at a high, you can then buy the dips.
Anyways, Novogratz predicts it will bounce between 10k-16k for a little while, and I think that is reasonable.
With Bitcoin it's really hard to call highs and bottoms. The recent rally was super explosive - at first people were carefully predicting $6,000, then maybe $8,000 but despite the most brave predictions it went to $10,000 and eventually to $20,000. To those who got in at around $4,000 it would be a tough choice to call the top of $20,000 as every price jump was so big and could have easily be the top. Same thing goes for downward movements - it's always hard to tell how low will it crash. This means that for newcomers it's better to just hold for years, as there's no good way to call tops and bottoms on this market.