The key is for one to determine one's exit strategy, before doing anything. After that, then one needs to evaluate that strategy to determine whether s/he can execute that strategy well under these market conditions.
Some buy-and-hold strategies work better than others; similarly, some flip strategies work better than others. Not every strategy will work in every market. So, one needs to educate one's self to ensure that s/he will be able to piece together the right strategy for a particular market. Of course, for him/her that strategy might be to wait awhile longer before striking.