Just try to ignore and just enjoy the Watch. As many people have said, stainless steel will scratch. It's a soft metal, it's just what it does. Other luxury watches made out of stainless steel scratch too, it's not a defect. People say that the scratches on a person's watch represent their life and the person they are. Just know that you COULD get rid of those scratches if you wanted to, but you don't need to. I'd say just live with it for as long as you can and then once you've had your Watch for say, 6 months, either get a product to buff the scratches out yourself or have a jeweller do it - if they're really bothering you that much still.
Mostly, just remember there's always a period of 'newness' with any new purchase. Like when you buy a new car and you do everything you can to avoid making it dirty. But eventually you just stop caring cause it's not so new to you anymore.
What I'm trying to say is, just enjoy your Watch and don't worry about the scratches so much. If you just put them out of your mind and tell yourself that you don't care, you'll enjoy the product far more.