go for it 去争取吧，尽力争取;试一试;加油

【例句】
She thinks that if you believe you can do something, you should go for it.
她认为如果你相信自己能做点什么，你就应该去争取。

Just go for it. First, you need to know what kind of job is suitable for your age and interest.
加油吧。首先,你需要知道什么样的工作适合你的年龄和兴趣。