GA4 doesn't need to be complicated. In a single afternoon, you can enable tracking, capture the events that matter, and verify data is flowing.
1) Create a GA4 property
In Google Analytics, create a GA4 property and copy your Measurement ID (e.g., G‑XXXXXX). Add the tag to every page, ideally via your site template. If you already have a tag, confirm it's the correct property.
2) Track a few core events
Start simple: page views (default), contact link clicks (tel: and mailto:), form submissions, and key file downloads (like brochures). Map each event to a business goal so reports stay meaningful.
3) Validate with Realtime
Open your site in one tab and GA4 Realtime in another. Click around and submit a test form to ensure events fire. When you see clean data in Realtime, build a basic report for leads and conversions.
That's enough to make decisions. You can always add more events later, don't let complexity delay useful insights.