I think its yes. It is better to keep holding bitcoin until it reach the highest value of it. Bitcoin is like a kind of gold that can keep and has increase annd dicrease of its value. It is good way to make money while keeping it.
its time is really a good time to hold your bitcoin because bitcoin increasing its price daily 50$ its very wonderful for us nowadays its a great time to buy bitcoin and then hold it for the future and then get a great profit.
Yeah this is the best time to hold bitcoins as price is moving higher and higher and if we sell now then we will regret in future for not holding enough bitcoins for the right time so its better to collect as many bitcoins as possible at a moment and keep them safe in wallet and sell them only when you are making huge profits from it.
You need to sell some bitcoin when you reach a certain mark, because for good growth the price will periodically fall.