What are the actual top misconceptions that cause operators to fail?

The misconceptions that cost real money, ranked by frequency and dollar impact:

• "I need to find the winning product first". The winning creative and angle matter more than the product. A mediocre product with 50 targeted creatives consistently outperforms a "winning" product with 3 generic ads.
• "More interest targeting = better results". Stacking 10 interests narrows the pool, raises CPMs, and limits learning. Broad targeting plus strong creative is consistently superior in 2026.
• "Day 1 data tells me whether to kill or keep". Operators kill campaigns after 24 hours with 0 sales. Learning phase requires 2–4 days minimum. Day 1 kills mean you're throwing away the most expensive data you'll ever collect.
• "High CTR = good ad". A 4% CTR with 0.2% landing CVR is worse than a 1.2% CTR with 2.5% CVR. The metric that matters is cost-per-purchase, not cost-per-click.
• "Scaling = raising my budget". Scaling is a system: horizontal (new adsets), vertical (budget increase), creative expansion, offer engineering, and backend LTV improvement. Budget is one lever of many.
• "Email marketing is only for people doing $500+/day". A single abandoned cart flow capturing 15–20% of abandoned carts can cover 30–50% of your ad spend from day one, at any volume.
• "A new pixel needs interest warming before broad works". The "warm-up engagement campaign" myth slows launch timelines and wastes budget on engagement events that don't signal purchase intent.