Begin by familiarizing yourself with the basic layout and navigation of the iPhone's home screen, including the app icons and the Control Center.
Next, explore the built-in apps that come pre-installed on the iPhone, such as the Phone, Messages, Mail, and Calendar apps. Try using each app to perform its core functions, such as making a call, sending a message, or creating an event.
Once you are comfortable with the basic apps, move on to more advanced features and settings. This might include learning how to customize the home screen and app layout, manage notifications and privacy settings, and use Siri and other voice commands.
To continue your learning, explore the App Store and download a variety of different apps to try out. This will give you a sense of the wide range of possibilities and capabilities that the iPhone offers.
As you continue to use your iPhone and learn more about its features and capabilities, make sure to seek out resources and tutorials that can help you learn more. This might include online tutorials, forums, and user groups, as well as the iPhone's built-in help and support features.
By following this plan, you can gradually learn everything there is to know about the native iPhone app and become an expert user.