Step 1:
Login to your WordPress dashboard and select the Plugins tab on the left side of the Nav Bar.
Step 2:
Install your plugin: If you don’t already have a tracking plugin we recommend you install the Header and Footer Code plugin by Aleksandar Urošević. To do so, add a new Plugin in your WordPress Plugin page and search for the Header and Footer Code plugin by Aleksandar Urošević. Once you have found the plugin, select Install Now and then Activate the plugin.