The answer is nobody knows. I am seriously.
But there are some places where the price can rebound with a very high probability. For now it's levels 165 and the global 150-152. If the price will show a confirmation on this places (false breakdown with big tail candle or bull initiative on huge ), you can try to catch the bottom.
You do not have to act, you do it at your own peril and risk. But that’s how we catch the knives.