Quick market analysis currently:
Bitcoin is now hovering near an important support level (105,000 - 107,000).
If this level is broken strongly, it may drop to 98,000 - 100,000.
Selling now means turning unrealized losses into realized ones.
My personal advice:
Do not sell randomly now. Watch today's close, and if it maintains the 105,000$ level or bounces back, patience may be the better option.
If you are afraid of further declines, sell only a portion and keep the rest.