I dont know if you are still holding your bitcoins or already sold them! Firstly, you if still holding and you already satisfied with profit, then feel free to sell it or some percent of it from your total assets. Although bitcoin grown upto $10k, which is happened less than within a week but people are still confused to considered it as "up tread". So if you don't want to take risk, then you can sell and you already sold, then i suggest you not to buy right now. Wait until for strong sign
I think this decision on selling or holding bitcoin is a personal matter but if we talk on investing in bitcoin for a long time then the chances of lossing profit is much less. I suggest when you hold your bitcoin and the price of it is already enough for you then I guess it was the right time to sell it but, if the price is not yet enough for you or else if the price is not increasing even a small percentage then hold it and wait. It's better to focus and have proper knowledge about it to not loss a huge amount of it.
Exactly, decision like this is for the person itself and there's should be no influenced from anyone. If happened that you are already good with the percentage of your earnings, either to pull out your intial investment or to takeall then enjoy your profits.
It's a matter of how you design and plan your investment, if you have certain target and its been achieved then it's good for you to take it.
Sometimes greed comes out and dictate the wrong things to do, never listen and make sure to follow what the original plan that you've got.