Focus on this one thing

A minor inconvenience the first time I tell you, irritating the fourth time, annoying 6 times and up. This is what pisses me off. REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING REPEATING
MYSELF.

I'm fine with repeating instructions and messages and conversations, but repeating things such as Don't Do _____ or Stop doing _____ really gets me mad.

Let's say J here has a habit of commenting every single thing that she doesnt like. I don't know why but I guess she's mad that I get stuff earlier e.g. cell phone earlier, quitting piano earlier... etc.

True Story:
Me : Next time can you get the bigger size meat for teh pulgogi?
Mom : Aye! Just eat it!
Me : It's the same but, it's kinda small.
J : mubmelbmeubmeblmebuebmebmelb
Me : Eff you -leaves table-

And here I am, telling you this. Really unnecessary, but I'm ignoring her til she understands that what she does is unnecessary.

btw if i'm doing something unnecessary that can be changed, PLEASE tell me.
But nothing regarding hobbies and stuff, i tend to like those.