Start by learning HTML or google how to create a website
Open notepad, type <!doctype HTML>
<h6> hi <h6>
End the file in something.html
Make css, file
Make some jquery
Make a little php
Make some sql
MakE a domain name
Upload it in ftp on Firefox
Simple start with the basics on codeacademy
Then try taking a course on udemy
Then enroll in online tournaments and win cash and land a job with a major company
If you don't know coding, then use any CMS like WordPress ,Joomla or any website builder like wix, weebly, Yola etc.
making your website ??
try using wordpress or wix