Do I start buying Bitcoin now or I wait for it to go lower? Half an year ago I made a simple yet effective plan: start weekly DCA on Bitcoin when it goes below 50% drawdown from ATH(below 63k) and stop DCA around 1 year after previous ATH or when the price will be again too high

Do I start buying Bitcoin now or I wait for it to go lower?
Half an year ago I made a simple yet effective plan: start weekly DCA on Bitcoin when it goes below 50% drawdown from ATH(below 63k) and stop DCA around 1 year after previous ATH or when the price will be again too high