Anonymous transactions with bitcoin core Is there any chance that people will identify me when I have nordvpn running in the background when making transactions with bitcoin core? Already done this 

What are you recommendations to stay anonymous with bitcoin core and where to get information to achieve this?

Do I need to setup bitcoin core with tor?(seems advanced)
Read somewhere that bitcoin core automatically uses tor if it is installed. But hard to confirm.
Your VPN provider at least is in a position to deanonymize you. Therefore, I would rather use TOR. It's not infallible, but many people have used it successfully to achieve relative anonymity. Here's a short guide to setting up bitcoin core with TOR

As Saxtheowl has already mentioned, however, both a VPN and TOR can only hide your IP address. There are many other ways to get deanonymized. Fortunately, there is a comprehensive guide about everything you need to know about using Bitcoin in private