Better to be safe! But if you're willing to take a risk, go on! BTC will retest. After reaching ATH 73k, there will be a pull back. Correction might take longer. We don't know yet! Then after that, there will be another NEW ATH or a huge DUMP! So again, wait for the BTC to retest several times then let it break out before buying long. There might a fake out if you don't wait!