Why not selling any coin i dont understdand you will make more money by just selling them further everytime then just holding the bitcoins you know.That is not what you
have to so becuase that is irrelevant.
If you belive the bitcoin price will rise in the long term and you do not have time to trade, it is better to hold.
You can buy it back in a short term...
Bitcoin price do not will go up in the next 4 years, only in the halving and that's not 100% also...