Translation of "Mustered" in Japanese

I mustered up my courage and went there.

私は思い切ってそこに行った。

He mustered up his courage to talk to a foreigner.

彼は度胸を据えて外人に話し掛けた。

She finally mustered up the courage to ask him for more money.

彼女はついに勇気を出して彼の借金の申し込みをした。

- I mustered up my courage and went there.
- I screwed up my courage and went there.

私は思い切ってそこに行った。