Hi European here.
I always heard America is pretty competitive and that the people are very direct/speak their mind.
I’m quite the sensitive person, so I was wondering if it could be hard for me if I would ever go to America and if I needed to become more “tough”.
And would someone like me even be welcomed or would I be rejected?
No. The US is a huge and diverse country with many different regions and subcultures. While there is an element of performative male toughness that is common in many social circles, it’s easy enough to avoid if you associate with people who aren’t that way. Generally this will be much easier in large cities but may take a little time to find the people who are on your wavelength.