If you're running a VPN it might be a good idea to think about the reasons you're running it.
Many people run a VPN because their security software told them it was a good thing to do.
If you consider what a VPN does then you can decide whether it is the right thing for you. A VPN intercepts your traffic that your internet provider would normally send straight out to the internet and sends it to an overseas location and then sends your traffic out from there.
By doing this you are slowing down your internet connection, say you want to browse trade me, your traffic will have to travel half way round the world to the VPN location then back again to get the trade me server. Your traffic is generally encrypted too which takes time to encrypt and decrypt at each end.
What you don't know is how much data the VPN provider is storing about your internet usage, are they storing your growing history? passwords? credit card details?
The unknown of VPN's make them dangerous and should be avoided.