Kill on spend, never on the clock

Newbie move: "I'll give this creative 24 hours." 24 hours at low volume = 30 clicks = noise. You killed a winner or fed a loser.
My kill rule (the loss threshold where you pause a creative): 3x payout spent, zero conversions → dead.
Tie the trigger to spend equal to 3 expected payouts, not hours.
— $50 payout offer → kill at $150 dry
Time lies. Spend doesn't. Rewrite your kill rules in dollars tonight.