Monitoring and testing your advertisement over time is the only way to truly know how well it performs. Watch how it performs. Does the advertisement support the objectives you outlined at the outset? You should be able to clearly see outcomes, whether you want more ROI, greater website traffic, or anything in between.
Test unique features if you discover that your campaign isn’t functioning as you had anticipated. Consider your alternatives for targeting first. To determine which ad groups work the best, run many variations based on topics, keywords, etc. Test out remarketing campaigns with comparable audiences. What type of targeting is more successful?
You can track the effectiveness of your advertising directly in Google using a variety of reports, and you can link it to Google Analytics to observe how it has changed the number of visitors to and conversions from your website.