My account cannot be found ?

Answer 1

If you are talking another account.

1. You were suspended due to violations

2. Your account was deleted due to inactivity

3. You need to be in desktop mode

Try resetting your password in a desktop mode. The instructions are found in the Yahoo Help pages (referenced) and 10000s of previously asked questions.                                                                                                                                   https://help.yahoo.com/kb/answers/recover-reset-ya...

Answer 2

Since you are logged in here and posting it means you have found your account.