We wont be able to do anything other than suggest you to contact facebook and see what they can do for you.
Create a new ID. Go to your old ID profile link. Report it. It will give you 5 options. In that, there is an option of "My account is hacked" go to that option and click continue. Then follow the steps. They will see what they can do for you.
Facebook is great social networking site. Facebook had made people get connected with just one click of logging. People from miles can get connected and shares in with chats and video chats in just a plus of click.
Easy problem with easier solution. Do like avi619 said. Hope you get your Facebook account and learn from this mistake. Create a better password, include small, CAPS, numb3r, and speci@l charac+er
First you open your id and check whats say on it then follow instruction and then Facebook ask your mobile number and you give your number then he say for security and you secure your Facebook account its a simple and useful method
Just forget it ...make a new one,and try to secured it well. I think you should use phone verification method .It can protect you from hacking.
Get in contact with Facebook and re-check your system have a proper anti-virus solution installed or not.
I thought my Facebook account was hacked and it turned out to be an ad advertising anti-virus software that made it look that way. I now use phone verification.
I think you can contact with admin of facebook otherwise create new one facebook and create strong password seal with mobile phone code verification.