There is two answers here, first is that bitcoin will not be so safe if you have bought it higher than the current price, in turn you will have loss. Second, is that when you bought bitcoin at the time when it was lower than its current price then you will have a profit. There is a duality in this situation so it really is up to you.
You correctly noticed everything and this is precisely the danger of investing in bitcoin, because any investor in the cryptocurrency market expects a risk that is adjusted due to sentiment in the cryptocurrency market. It is impossible to predict what the development of events will be in the near future and when it is possible to invest in Bitcoin most profitably. But if an investor buys Bitcoin for longer storage, then this is the best option for investment, since only long-term investments will bring good income for the owner of Bitcoin.