没看懂……

导师，师兄师姐，都反感我

   无对错之分，各有执念与忌讳吧，确实也许要察言观色，圆滑处世，但不必失本心。

My friend, take it easy. Be nice to friends around you, but it is not necessary to make everyone you meet happy.

导师，师兄师姐，都反感我

That's bad, but not too bad, at least somebody tells you the truth.
I would take it seriously, if I were you.

The main issue is "又是对我们本身很认同的一些东西的批判和绝对的反击".
Majority of people in the world don't like always being challenged, especially in our culture.

Take mitigation action immediately please.
It is hard to turn your instructor's attitude around later.

There should be a firewall between your work and your life.

In summary,
take it seriously, but not be scared.

Let me know if I can do something for you.