If you would like to work with me to build out your own projects based on what you want go to upskilltocyber.com
These are free resources/projects/tools to follow your curiosity and gain skills
RhinoLabs AWS Pen Testing https://github.com/RhinoSecurityLabs/pacu
AWS CloudGoat - https://github.com/RhinoSecurityLabs/cloudgoat
https://overthewire.org/wargames/leviathan/leviathan3.html
Networking quite simply is how data gets from one computer to another. A model that helps you understand how this is done, can be found here: https://aws.amazon.com/what-is/osi-model/#:~:text=The Open Systems Interconnection (OSI,across%20geographical%20and%20political%20boundaries.
Other Resources:
Apache Guacamole Bastion Host - https://github.com/ariesyous/guacamole-aws
Practice & Gain Networking Skills - https://www.gns3.com/
TestmyNIDS- https://github.com/3CORESec/testmynids.org
Packettracer - https://www.netacad.com/courses/packet-tracer
What is a Web Application? https://aws.amazon.com/what-is/web-application/