Desktop Phishing

I'm learning Phishing for education purpose but it's working only on my internet network and when I checked it on other internet connection/network it's not working. Like my localhost ip address not working on other PC. I tried to write my public IP, My IP4 none working and it's working on same internet network only so I'm unable to receive logs from another person. Please let me know if it's still working (Desktop Phishing) and you guys able to help me