Holding bitcoin for a long time is both good and bad. It is good if you have plan or target price to sell it. It is bad if you just hold it without having a future plan for it. You don't have a target price to sell it. You just want to sell it at a very high price but no on one can say how high it will be.
A target plan is always necessary for all of us, once we are holding we should have a definite target for us to be able to do the right timing. We should always be careful with our greediness as when we see there's a big price increase we think that we will earn more but not really, what if the price crashes hard?