Oh Angelina I'm so sorry it's not doing as you hoped yet... Maybe things will settle down after the first few days and you will feel a little better.
I read around a bit about SCS, and it seems that the positioning is all important, and that quite often the position has to be tweaked to find the optimum place where it gives relief where it is needed. Hopefully when you return for your evaluation they can work out what is going on and improve things.
It must be terrifying dealing with this alone, I think you are incredibly brave. Don't give up hope, it is very early days and you may yet be lucky with it

.
Fingers still crossed here!
Bram.