What is the next automation testing step after using selenium to test the user journey? [closed]

What is the next automation testing step after using selenium to test the user journey? I have tested the login process, then the visibility of the expected elements then what elements should be disabled, enabled, hidden, also if expected error and success messages are appearing.

I have tested all functions within the user journey (for example adding entries, updating them .. ) navigating between pages ... what's next?

Also, Add, edit, delete functions

I checked every window and every element automated then run it continuously or every time a new change is committed.

Use screenshot comparisons too if this is suitable for your app.

Test invalid data

What is the next step?