I agree with what's been said so far. VPNs are an OK first line of defense if you're paranoid or doing shady stuff on the web, but for the average user they are unnecessary. They aren't as private as they claim, though. If you're hyper-paranoid, then VPN + Tor browser is the way to go, but the connections are really slow. Also, some streaming services like Netflix and Amazon Prime Video block common VPN server IP addresses, so you'll have to try different ones to see what the services allow.
TLDR - don't bother unless you're KAC