[doublejay1999]

Seems like the real pressure, rather than perceived pressures, is your Visa dependency.

I'm speculating a bit - but the fact that you perceive this job as a pressured environment, suggests that it's not right for you.

Very simply, brace your self for 6 months and then find a environment that suits you better.

[muzani]

Some people exploit this to work you harder than you would otherwise. I've seen this in several colleagues who are on a visa and can't get a better job back home, especially more junior ones.