Someone sent this and I thought it was worth posting.
Mistake #1: The "fake suspense" opener. Starting with "Wait for it..." or "You won't believe this" actually decreases retention by 23% in the first 3 seconds (based on my last 50 videos). What works: ultra-specific, mid-action opens. Instead of "This workout changed my life," try "I did 100 squats for 30 days and my knees started clicking.
Mistake #2: The 4-7 second death valley. This is where 60% of viewers bail if you don't give them a "commitment reason." I was doing slow builds - huge mistake. Now I drop the most shocking visual, stat, or statement right at the 5-second mark. Think of it as your "stay hook" - different from your scroll-stopper.
Mistake #3: Deadly pacing patterns. Any pause over 1.2 seconds = immediate drop-off. I learned this by tracking frame-by-frame retention. Your brain thinks "dramatic pause," but viewers' thumbs are already swiping. Cut everything 30% shorter than feels natural.
Mistake #4: The "reveal too early" trap. If you show the end result in the first 10 seconds, retention drops 40%. People think they got what they came for. Always tease the outcome, show the process, THEN reveal. Works every time.
Mistake #5: No "rewatch triggers" Content that gets rewatched gets pushed harder by algorithms. I now intentionally place quick text overlays, fast transitions, or "blink and you'll miss it" elements that make people go back. Increased my rewatch rate from 8% to 31%.