Although there are many considerations in web design, as a beginner, your first step is to actually get something out onto the web. The fine-tuning can come after you've figured out how to publish a basic web page. One way is to use a WYSIWYG ("What You See Is What You Get") web editor to do it. Such editors allow you to design your site visually, without having to deal with the technical details. They work just like a normal wordprocessor.
For those who prefer to use a commercial program, thesitewizard.com has numerous online tutorials for a web editor called Dreamweaver, a program with features on par with that of Expression Web. The Dreamweaver Tutorial takes you through all the steps needed to design a complete website, in addition to providing you with the theoretical and practical foundations that will help you create and maintain that site.
It is always recommended to run a weekly check of your site to ensure all features are functioning as expected and that all pages display their content correctly. The more thoroughly you check your own site (especially in the mind of your users) as well as information in the Google Search Console and Google Analytics, the more likely you will discover more ideas for improvement and further enhance your website. building a website