Start by logging into your Wix account.
Once logged in, navigate to your site's dashboard.
In the dashboard, find and click on 'Settings'.
Under 'Settings', look for the 'Custom Code' option and select it.
Click on the '+ Add Custom Code' button.
Choose 'Custom' from the available options.
Paste the tracking pixel code that you have been provided into the provided box.
Ensure the tracking pixel is set to apply to all pages of your site.
Click 'Save' to activate the tracking pixel across your website.