GA4 Help Setup Cant see my account to connect in impulse shopify theme

[wonderboy]

Hi,
Can someone please help me with setting up the new GA4 Analytics from A to Z as I can't makes heads or tails with the youtube tutorials.  I have followed the instructions but it doesn't seem to work.  I have setup the google account but can't seem to connect the website to the analytics.  If someone can point me or show me how do I do this.  At the moment we have no analytics on  our website at all.

We are using the theme Impulse.

Thanks
Moe