You Have 2 Seconds
Someone searches 'SAT prep courses'. They see 4 ads above the results. Each ad gets maybe 2 seconds of attention. Your headline either grabs them or they scroll past. These two headlines compete:
Ad A: 'Quality Educational Services for Students'
Ad B: 'Raise Your SAT Score 200+ Points - Guaranteed'
Ad B gets 5x more clicks. Why? Specificity, benefit, and a bold promise. Generic headlines die in the scroll.