Act as a certified strength and conditioning coach with 10+ years of experience training elite athletes. Provide a detailed, science-backed strategy to overcome plateaus in strength training for [BEGINNER/INTERMEDIATE/ADVANCED] lifters focusing on [EXERCISE NAME, e.g., Squats/Bench Press/Deadlifts]. Include recommendations for [PROGRESSION METHODS, e.g., linear periodization, undulating volume] and [NUTRITIONAL ADJUSTMENTS, e.g., caloric surplus, protein timing]. Explain how to implement deload weeks, variation in rep schemes, and accessory work to break through stagnation. Address common mistakes like [OVERTRAINING/POOR RECOVERY/INCONSISTENT FORM] and how to correct them. Keep the advice practical, actionable, and tailored to the lifter's level.