First of all, visit the login page of Facebook account in your web browser.
Enter your email address and password which is used while creating your Facebook account.
After that, you will see two options:- confirm Deletion or cancel deletion
Choose the option of cancel deletion and after sometime you will retrieve your Facebook account again.
Above mentioned are the best and simple steps to reactivate your self disabled Facebook account .
For more info:- https://worldzo.net/