How to prevent Facebook hacks?

[Willow]

Over the last four days, my Facebook accounts (one personal account for family/ high school friends and another for good people I've met online) have been getting hacked, or have attempted to be hacked, by the same person. I don't know who this person is or what the hell their problem is, but I know where they're from and their IP address thanks to the Facebook notification I got when I tried to log in and realized my account was "temporarily locked."

I've changed my passwords over and over to random letters and numbers, deactivated it for 24 hours, and it still happens. I have two hobby/ business pages that I need my Facebook accounts to be active for so this is a huge problem for me. I've tried contacting Facebook about the issue via their "Feedback" option but have had no such luck with getting a response. This is incredibly frustrating and I'm tired of it.

Is there anything I can do to better secure my accounts so that these people will leave me the F alone?
Regardless of whether or not someone call full on hack into my Facebook isn't the point, they're trying to and I'm tired of changing my password every ten minutes.

I downloaded AVG and it said there wasn't anything on my computer, so I don't think that's the problem. :/
I figured out the problem. Between AT
...okay then, just cut off half of my explanation. Anyway, ATT and my stupid phone confused FB and made it think someone was trying to hack my account. Whenever I log onto FB on my phone, it signs me out on my computer and gives me the message about someone trying to access my account. I haven't logged in on my phone since last night and haven't had a problem thus far.