Act as a seasoned digital marketing strategist with 5+ years of experience in content growth. Provide a step-by-step guide on how to effectively use YouTube to drive traffic and grow the audience for [BLOG NICHE]. Include specific tactics such as creating [TYPE OF CONTENT] (e.g., tutorials, reviews, behind-the-scenes) that complements blog posts, optimizing video titles and descriptions with [KEYWORDS], and leveraging YouTube’s end screens and cards to direct viewers to the blog. Also, explain how to repurpose blog content into engaging video formats and collaborate with [INFLUENCERS/CHANNELS] for cross-promotion. Ensure the advice is actionable and tailored for beginners or intermediate bloggers.