Every decision in crypto will always require a risk at least. And how high the risks will depend on the decision itself. Fortunately, you put your money in BTC in which is likely the most valuable crypto at all.
I persoanlly a fan of Bitcoin, but telling the truth, not putting all into Bitcoin, still having some altcoins (mostly top coins)in order to take profit in short term.
If you are willing to still hold, I personally will take some profits in several stages or at least before thebullish time will sell mroe than 50% of the assets. And then take or buy again in the next bearish market to hold for long term period.