You can measure the success of your Google My Business profile by analyzing insights data, such as the number of views and clicks on your Google listing, the devices and keywords used by customers to find your business, and the time of day and day of the week customers view your listing. You can also track the number and quality of customer reviews, the engagement and reach of your posts, and the performance of your ads. By regularly monitoring and analyzing these metrics, you can adjust your strategy and optimize your profile for better results.