The 30 day grace period is a dark pattern. It's user-hostile and relies on Facebook's addictiveness to get you back on Facebook. Just like with quitting any drug, quitting Facebook causes powerful withdrawal symptoms and for some it might be almost impossible to go the full thirty days resisting the urge to log back in.
So here's a solution:
Change your Facebook password to something you will not remember, like a random sequence of 20 characters. Copy this string. Click "delete Facebook". Paste the string when it prompts for your pw. Now copy something else, overwriting your clipboard. If you use an advanced clipboard system manually delete all clipboard items. Reboot your computer.
Now you won't be able to log in even if you want to, and Facebook will be safely gone from your life in thirty days.
Probably you'll be able to reset your password. In my case I deleted my phone number associated with my account to make recovery as difficult as possible.
I should say it's not a complete solution, just another line of defense against the urge to log back in.
So here's a solution:
Change your Facebook password to something you will not remember, like a random sequence of 20 characters. Copy this string. Click "delete Facebook". Paste the string when it prompts for your pw. Now copy something else, overwriting your clipboard. If you use an advanced clipboard system manually delete all clipboard items. Reboot your computer.
Now you won't be able to log in even if you want to, and Facebook will be safely gone from your life in thirty days.