1. Videos to learn Network+ and Security+ concepts

https://www.youtube.com/c/professormesser

1. Basics of python and linux:

https://www.edx.org/

https://www.coursera.org/

https://udemy.com/

1. Capture The Flag (CTFs):

https://hackthebox.com/

https://tryhackme.com/

https://picoctf.org/

1. Roadmap with basic terms:

https://roadmap.sh/cyber-security