Thank you for reaching out and posting this question!
This would depend on your theme as some themes can be created by a third-party or custom-built, and may not necessarily function the same way. However, if you’re using a Shopify-supported theme, then you should be able to change the header for each sections on your homepage.
In this example, I’m using the slideshow section and I can insert up to 5 slides. Each slide also contains their own header so I can change the title for each image essentially. You will need to check if your theme offers these separate headers for each image, and I’d also encourage exploring some of the other sections offered by your theme.
That being said, I’d love to hear more about your business and share some resources to help you get started. What kinds of products are you selling? Do you have a marketing plan prepared for your store?