How to create LaTeX templates on VS Code to avoid repeating the same codes every time?

Every time I start editing, I write these words at first:

documentclass[a4paper]{article}
usepackage{amsfonts}
usepackage{amsmath}
usepackage{microtype}
begin{document}
title{large{textbf{xxx}}}
author{xxx}
date{2021}
maketitle
section{}
section{}
end{document}

I may use similar packages and settings every time. So is there any way, like auto signature when sending email, that the software(my editor is VS Code) can generate these codes automatically, so that I can make some adjustment according to what I want to create, and remain other setting unchanged