This will eventually be a site I use semi-professionally to display my resume and portfolio, but now it's where I learn HTML.
The heading above (Zach's Personal Website) is an <h1> element, which is meant to convey the main purpose and content of the page. There should only be one <h1> element per page.
It's generally best practice to not skip headings when going down a page
It is, however, good to nest headings to frame the structure of a webpage. For instance:
Links are important. Here's a link: How to make a hot dog