No you don’t Ali. Start doing some exercises. You can cure it. Honestly. And it need not be an impediment to charging about in your Gti.
An easy one to start with is you sit without back support (maybe on the edge of the bed?) together with a pen/pencil/some other stick type thing - I’ve used a shoe horn!! But that’s me, I don’t have pens handily about the place anymore. And some way of timing yourself in seconds if possible (I use my iPhone, but if you don’t have a handy timer, just count).
Hold the stick type object in front of you and swivel your head from side to side, keeping your eyes on the stick. Do it for as long as you can, if you are very dizzy, it may only be 10 seconds, but whatever, just as long as you can. Stop timing it and recover your equilibrium. Once you have, do it again, trying to do a few seconds more.
Do this several times a day. Each time just try to increase by a few seconds.
Eventually you should aim to be able to do 2 minutes. When you can do that, you’ll find that your head is much better.
There are lots of other vestibular exercises on line. See what you can find and what you can manage to do.
Don’t write off driving without trying to fix it!!
Best of luck. And stop comparing yourself to people who are worse off, we all have MS. It’s a bugger however you are affected.