this is a DIP for crypto currency prices,
it has been proven if we look at the Bitcoin chart then you will understand that Bitcoin lasts a long time not to fall from $ 15k,
and it is proven that Bitcoin can survive above it, maybe indeed $ 16k is a DIP and if you want to buy then this is the right time.
Just buy and hold on. Do what you can do when you get a discount at a low price. Do it with the DCA strategy like many people do which can open up opportunities for you to buy at low prices.
Continue to buy and accumulate in the long term. Do it regularly, then the results you will see in the next 10 years will make you happy for the persistence you do in every round you apply.
But if the 10 year term is a bit long you can do in the 5 year term because time flies quickly without us realizing we have some btc in our portfolio.