1. I've had enough of it.

我受够了。

2. I can't stand this job a minute longer.

这份工作我一分钟也忍不了了。

3. I'm insecure about my future.

我对未来有些茫然。

4. I was in two minds whether or not to come this morning.

我早上还在纠结来还是不来。

5. I'm a bit down in the dumps.

我郁闷了。

6. It's getting on my nerves.

真让人心烦。

7. What a bummer!

真糟糕。（杯具了。）

8. I'm fed up to the back teeth with being criticized all the time.

成天受批评，我都烦到家了。