YOU SAID:
my mum doesn't like when i'm on the xbox
INTO JAPANESE
私の母は私がxboxにいるとき好きではない
BACK INTO ENGLISH
My mother does not like when I am in xbox
INTO JAPANESE
私のxboxにいるとき、私の母は好きではありません
BACK INTO ENGLISH
My mother does not like when in my xbox
INTO JAPANESE
私の母親は私のXboxの中で好きではない
it is unlikely that this phrase will ever reach equilibrium