maybe this time it is better not to sell bitcoin, but I do not think that never sells bitcoin what you have is a good thing. Well, what are you looking for bitcoin if you never sell it. bitcoin not illegal, as long as it is not illegal it would be better if you were to sell it. so I think you just have to look for it and sell it at the right time.
It all depends on whether or not you made any profits, and how much profits you have made.
If you made like $20-$30 profit per coin, then it's not worth selling your coins for, but when you have made +$100 profits per coin, then you can consider selling some coins.
Just make sure you never sell all your coins at once as you will surely regret doing so.