First, go to Manage Domains.
Then, in the Manage Domains section, hover over your domain name. You should see a popup with your the numbers for your connected Google Analytics Account, Property, and View.
Log into your corresponding Google Analytics account that you believe to be connected. Once logged in, compare the numbers that appear in the URL with the numbers that appeared when you hovered over the domain name.
If those numbers are the same, then you selected the correct property.
If those numbers are not the same, then you did not select the correct property. You probably have to follow the directions in https://intercom.help/monitor-backlinks/getting-started/i-connected-the-wrong-google-analytics-property