HELP! Facebook Conflict ! Plzz?

[Nevaeh]

Okay so I'm eleven yrs old and my mom caught me on facebook. she doesnt like me on facebook and I was talking to this boy. I dont know what to do. She saw it on my laptop while I was sleep and today she told me not to delete anything i wanna see who youve been talking to. so I deleted everything from my google chrome browser and from my mozilla firefox browser. i signed out of facebook. im like scared i mean she might beat me and i know shes gonna take away all of my stuff. my tablet and this laptop. i dont know what to do. somebody help.
the account isnt mine