i am so pissed off

with my mum...this has been simmering inside me for the longest of time....everyone knows that my wedding is drawing nearer and i am moving out of home soon...being ks and a person who hates to do last minute stuff, i have gradually, over the past few months, moved bits and pieces of my stuff over to his place...now what is left in my room is mostly things that i am currently using and things that i still need but every week, my mum will try to invade my current space...the point is, during the course of moving my stuff over, i have free up some space from my mum to move her things over..from 2 big hanging wall cupboards, 2 hanging clothes cupboards and 14 drawers now i am only left with 1/2 hanging wall cupboard, 1/2 hanging clothes cupboard and 4 drawers left and yet, my mum still wants more space...every weekends when i come home, she will tell me that she has taken which of my space and move my stuff to another space...what i dun understand is firstly, her things have not grown overnight, why does she need so much space?..secondly, cant she wait till i moved out officially to move her things over??...i just find it so rude...every weekend when i come home, i realised that my things are missing from the place i last left it and in place is some of my mum's stuff...so bloody rude...when my elder sis moved out, she did not dare to touch anything till my sis was out completely..somehow my mum bullies me....sian