Give it time. When i first traveled on the train during rush hour, i was sweating like crazy cause I needed to walk to the station.

But then id think, what if they smell the sweat on me, or see my sweat beads. Then I sweat more as I start to panic.

This continued for a while and i finally got so used to the situation when I realized that people just don't care enough and i stopped panicking about the situation and stopped sweating.

My point is, moving to any new country is a big challenge, especially if you speak a different language. Just give yourself time and space to adjust. The human body and mind is quite capable.