Tailscale exit node problem with google cloud

Hello everyone,

So I have been following guides and trying to set up a vm on google cloud as an exit node, however, after much trial and error and possibly messing up the vm for all I know, on the tailscale console, the vm is shown with the blue tags subnet and exit node, but when I right click on the tailscale icon and go to exit node options, it still shows “no exit node available”. Can anyone tell the problem is from my description? Is it better to delete the vm and start all over?