I translated following sentence into English by myself. I feel my translation is not perfect. So, would anyone correct?

A1：あの先生はできる生徒をひいきするから，頭にきてるんだけど。
B1：無視すれば・・・。まあ，そういうわけにもいかないか。
C1：いずれにせよ，愚痴をこぼしてばかりでは，何も変わらないよね。
A2：そうだね。頭を冷やして，勉強に集中するしかないね。がんばるよ。

A1：I am angry with that teacher because he is good to the students who get good score.
B1：You should not care about it. But, it may be difficult to do so.
C1：In any case, it will not change anything to just complain.
A2：I think so too. I have no choice but to calm down and concentrate on studying. I will try hard.

Question

I translated following sentence into English by myself. I feel my translation is not perfect. So, would anyone correct?

A1：あの先生はできる生徒をひいきするから，頭にきてるんだけど。
B1：無視すれば・・・。まあ，そういうわけにもいかないか。
C1：いずれにせよ，愚痴をこぼしてばかりでは，何も変わらないよね。
A2：そうだね。頭を冷やして，勉強に集中するしかないね。がんばるよ。


A1：I am angry with that teacher because he is good to the students who get good score.
B1：You should not care about it. But, it may be difficult to do so.
C1：In any case, it will not change anything to just complain.
A2：I think so too. I have no choice but to calm down and concentrate on studying. I will try hard.

Jean_G · Answer

Your translation is okay, but if you'd like to sound more natural, you can use the below sentences as a reference.

A1: That teacher favors the good students, and it's making me mad.
B1: Just ignore it (or don't mind it)... But yeah, maybe that's not going to work either.
C1: In any case, nothing will change if you keep complaining.
A2: Right. I'll just have to keep my cool and concentrate on my studies. I'll do my best.