Hello dive mondo,
Welcome to the MS Q&A platform.
Please correct me if my understanding is wrong. You have addded Google Analytics tracking code to your website's pages 5 days ago. If so, you won't be able to see data from before that time, as Google Analytics starts collecting data from when the tracking code is added.
Here is a video tutorial on how to set up google analytics for your website.
I hope this helps. Please let me know if you have any further questions.