To get to the next level and scale of bigger programs, you need to leverage the tons of work information visualization researchers have done.

I always point people to Prof. Tamara Munzner's work[1][2] that allows you to skip over all the dead ends that people have tried over the decades and gives you a "thinking framework" on how to design visualizations.

[1] VIZBI 2011 Keynote: Visualization Principles https://vimeo.com/26205288

[2] Visualization Analysis and Design (Book) https://www.crcpress.com/Visualization-Analysis-and-Design/M...