I work on Clang and the Linux kernel. JavaScript was the first language I feel I've mastered, before C. Of the many C books I have and have read, I only recommend 2:
Head First C by Griffiths and Griffiths
Expert C Programming: Deep C Secrets by van der Linden
The first is an excellent introduction, especially if you treat it as a workbook.
The second is a great intermediate book.
Really advanced stuff comes from seeing things in the wild.
Also, I did research on alternatives to GA few days back, might be helpful of someone:
https://github.com/Open-Web-Analytics/Open-Web-Analytics
https://matomo.org/
https://github.com/matomo-org/matomo
https://github.com/usefathom/fathom
https://www.goatcounter.com/
https://plausible.io/
https://github.com/PostHog/posthog
https://www.usertrack.net/