*TryHackMe has free labs
*Hack The Box has free machines
*PortSwigger has a free Web Security Academy
*OWASP provides free security documentation
*Cisco offers free cybersecurity courses
*Google has free cybersecurity training
*Microsoft has free security learning paths
*SANS Institute publishes free security resources
*MITRE maintains the free ATT&CK framework
*Cybrary offers free cybersecurity lessons
all you need is a laptop and curiosity.