Need help with minification how to set and use

Speed

8/100

3 Passed Rules

Enable compression
Avoid landing page redirects
Prioritise visible content

below is my godaddy status, need help on minification any tutorial or someone who can do for me

Should Fix

Minify HTML
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Reduce server response time
Minify CSS
Leverage browser caching
Optimise images
Minify JavaScript