unable to run javascript and html code in vscode

im very newbie to all of this just learning syntax of javascript (first time learning coding language) i m just trying use vscode but i m having so many issues with it following certain tutorials i installed node js as the tutorial person said to install it to be able to run js in vscode and some extensions extensions and errors - 1) live server extension to run html file (issue- if i reload the page it doesnt update with any