Back-end / Full-stack course

Hi campers!

I’m almost done with my front-end certificate. I learned a lot of stuff here, but I’ve learned a lot through the courses, saving up some money on Udemy. I want to start with back-end certificate on freeCodeCamp with the help of some course about back-end or full-stack. I found this that seems a bit dated. Does anyone have resources or books about this?

This is probably a better use of your money if you want something to support the backend part of FCC (can also get it cheap second hand on Amazon I guess):