Safest TIME to buy in a position IN BTC/USD

As we can see here in the 4 hour chart in BTC/USD Bitfinex. We reached an low of 5.8k-6k and got a bounce and we still in consolidation, in the EMA line of 180 we haven´t crossed that line yet but we touched and it rejected it again. I am planning to see that btc retest the support of 6k and creates a double bottom to add into a position. Do you think is safe to buy now that BTC is cheap or are you waiting for an confirmation?