Creating a dashboard from scratch is often pretty complicated. You have to create tools to collect data on items of interest. Once collected this data has to be presented in an easy to understand and meaningful way to your users. It involves intricate planning of what data to include and how to display it effectively. Once you have a plan, implementing the design is a massive task especially since it involves building multiple components.

https://www.smashingmagazine.com/2020/07/responsive-dashboard-angular-material-ng2-charts-schematics/