Getting started with test automation can be daunting, but it's essential to determine which tests to automate first. Prioritizing high-value tests for your team and organization can help. Identifying critical application flows that must always work is crucial, such as login, registration, product image display, item addition, payment collection, and other key features. Analyzing data on user traffic and behavior helps identify the most critical combinations of browsers, versions, and operating systems to test. Best practices for successful automated testing include focusing on reusability and maintainability, writing autonomous tests, avoiding complex designs, familiarizing yourself with software design patterns, and basing your work on a testing plan or strategy rather than tools.