My page looks good visually, but am not sure if it’s structure is layed out properly, or if I used the right elements. How am I supposed to know, or is there not ‘one right way’ to do it?
Your site should have the correct semantic elements (header, main, footer, article, etc) in the order that they are intended to be read. This means that sometimes this isn’t the order that makes styling the page the easiest. You must also ensure that all your heading levels are hit in the order. This means that you should not skip from an h1 to an h4, and so on.