if your are already working, then you are not really dependant on your mother.
did you go to uni?, how long have you been working ?
the only way your mother could get you to the uk, would be if you was dependant on her and had evidence to prove it, as under uk law (18yrs old) and even european law (21yr) your not a minor. and may well have to make your own way to the uk, either work permit, tier 1, marriage to a brit or a student visa
i wish you luck thou
