Bitcoin price growth has indeed been proven in recent years until now it still has a positive ROI,
but for investments starting this year, ofcourse we hope that Bitcoin can reach a new year again, but that cannot be guaranteed either,
if you add There are too many bitcoins in your portfolio that you really need to know when to get out.
Historical patterns of Bitcoin price have demonstrated that it is not a good item for short term or day to day trading for generating profit unless you are professional trader and fully understand market dynamics and posses sufficient knowledge/experience of technical indicators. however, holding Bitcoin for extended period of time can potentially generate significant profits, particularly after its halving event that reduces block rewards and consequently increases its scarcity.
We agree that historically bitcoin benefits us if we hold it for a long period of time, or are happy to be said HOLD. Of course this is not a recommended thing if you want to trade short term, because the risk in this decision is indeed high enough that it will easily suck up bitcoin you if you sell it at a low price (even though you have done all your efforts to short-term trading, it still doesn't guarantee you will always be profitable).
Halving is indeed the goal of most people, because many predict that after that there will be mass adoption that will make bitcoin return to ATH, sentences like that are very common for other people to talk about bitcoin, even though basically nothing guarantees that bitcoin will re-form a new ATH in Halving this cycle.
You will only be holding on to yourself, and so will I, holding onto my bitcoins.