Ted here from Shopify, thanks for reaching out to us.
Sure thing! So Shopify offers a wide range of free courses with Shopify Compass if you would like to check it out. In particular, our Getting started with Shopify and How to Design Your Online Store (with Zero Design Experience) tutorials will help you get to know the platform and create a simple website design as you've mentioned. These links will become viewable after you have signed up.
Have you created a Shopify account? If so, what type of products are you looking to sell or what type of business are you hoping to set up? Have you created a business plan as of yet?