I've seen your profile pic and it's safe to say its not better than the pic I posted,the only difference is you have the tear drop mirrors..
We also get you love your car and your a girl racer and you race every car on the road in your rare seat Leon but get a grip, we know your a girl,you got the attention you were looking for the boys went mad for you but now your coming over a touch crazy.
My advice is stop playing the girl racer card,use this forum for what it's for and if you have any problems with your car put the
problem in the search bit at the top and see if you can find your answer if not write a thread in the mk1 section with an appropriate title and se what you get back.
There is loads of information on wheel fitment and lowering on here to sort your black wheels and lowering. Your wobble sounds more like a buckled wheel etc. out of balance wheels show more at different speeds and vanish at others. Wheel balancing is cheap anyway just to try tbh.
As I said stop playing the girl racer card it's getting old I've seen it all before.
Enjoy the forum.