Guys i cannot login into my account someone hacked my account i think. When i reset password via email it says username doesnot exist. What should i do? It was a senior account. Is there any bug or my account is hacked. And my Answer has been changed too

A search for the username "Thekool1s' results in
this result. An attempt to login with Thekool1s as the username and ~5 random letters as the password, results in an error message saying that I entered the incorrect password (this is expected).
An attempt to reset the password using the username results in the following message "A mail has been sent to your email address. Click the link in that mail to set a new password." so I would assume that whatever email you had set it to should have received a password reset email.
A search of the
security log shows that the password was reset via email twice today (this is likely the result of my test above and one other person's similar test. Other then that the most recent password change was on February 23, which is over a week after you last posted which would imply that your password was not hacked.
If you have both forgotten your email and password (or no longer have access to the email associated with the account, then you can have theymos reset the email address to one of your choice by following the instructions on
this thread