The price of BTC is decreasing enough because of some news lately.
And I think that this is also a good time to buy some. But I will prefer to suggest you buy based on steps, not all in one rate of BTC itself. You may set a target price of some BTC rates, and the lower buy is around $55k.
Btw, what is your goal? Long-term or short-term investment of Bitcoin itself?

But, if you are a daily trader, I think that there is no certain good time to buy or sell. You can set a price and then make a set of price goals to buy and sell the coin itself. But of course, it may be riskier.