SEO / Analytics Checklist

Hi, I’m pretty new on building websites in general, I still don’t know what should I do to get user’s insight (track users behavior on my website) to improve the websites that I built, for now here’s all things that I’ve done :

  1. Set up Google Tag Manager (YouTube Tutorial)

  2. Index your site on Google and set up Google Analytics (YouTube Tutorial)

So it’s basically just setting up google analytics, google tag manager, and indexing sitemap to google, is there anything else that should I do? Thank you