I think that selling everything isn't good decision. Not now, not for the future. I would not feel comfortable to give up all the coins...
I dont do that to sell my bitcoin everything.
you can sell it some satoshi and you can save some satoshi too. if the price will be rising you can get a lot profit.
Yes its always good to sell only part of it and that also if you are in desperate need of money, as saving them for future can give you higher profits in future when price goes higher.