Thanks Walter, I educated myself with google using your keywords. It appears that Opera with vpn is not leaking my IP. But since my default browser is firefox, I tried the hoxx add-on and found out that it is leaking my IP. So I added another which prevent webRTC from leaking the IP. But then even if it says there is no leak, I can see my IP add below, this using ipleak.net.

Anyway, I don't even know if using this vpn stuff (paid or free) is safe. I feel paranoid using it because it may be collecting my passwords. All I know is that "some" sites tell you to use vpn.