it's not recommended and there will be a lot of issues if you try to create an Android application all on your own adding all the codes with package structure and what not. Go to Android Studio-> New -> New Project-> Empty Activity (for Jetpack Compose) or Empty Views Activity (for XML layout). It already comes with basic code for Hello World these days. Then you can prompt AI to make changes in your MainActivity although I'd highly recommend checking out tutorials and courses that are available to you. There are a ton in Youtube and developer.android.com also provides many tutorials.