Good ECs. See if you can somehow reflect advocacy, in the Erasmus work. And do work on the Why Us aspect. It’s not just a direct question, they can look for your sense of match in all you present. Do consider one or more sci courses. And, a lot of US kids don’t get to visit first. Look at courses offered, activities/clubs, a way you would grow there and contribute (In and out of classes.) Top colleges want to build a community.
Thanks! What do you mean by advocacy? That I have taken initiative to improve my community?