Timing the market i usually easier said than done. When do you buy back? What if the market goes down initially and then bounces back, are you still a seller or

Timing the market i usually easier said than done. When do you buy back? What if the market goes down initially and then bounces back, are you still a seller or do you buy? I have a strategy to bring forward some of my regular investments if the market dips and sort of average into that.