How can I disable someone from getting notifications of your activities on facebook?

[Mawuko Batse]

Well I'm really pissed off with my mum because anything I post on my facebook wall/timeline seems to annoy her ranging from movies and cartoons to games and tv shows and all she does is threaten to block my account so I've had it. I'm under the impression she's subscribed to every activity of mine on Facebook and I want to prevent her from having that privilege. I want her to be unsubscibed to me but I don't know how to do it. I checked her profile and I'm subscribed to her.Do I have to unsubscribe to her so she could be unsubscribed to me? What do I do? I really really need help everyone.
All those who are and have been in my shoes I'm sure you know how it feels.What's worse is she's abroad and yet she acts like she's got control over me. It's not like a rude or disrespectful child but she's just terrible.