bitcoin is a commodity for traders, if you could see a buy and sell signal opportunity of at least 25% gain then there is no reason to lose money however safeguarding your coin by dividing into 3 or half 'coz whenever there is an opportunity to ramp up the price again you have still coins to sell or try to diversify to other alt coins the other part of your btc to gain more profit.my best advise don't sell all your btc.