1.Don't be so hard on yourself.

　　别这么难为自己。

　　2.Don't beat yourself up.

　　不要自责 (其实没什么的)

　　3.Dude,Look on the bright side.

　　老兄，想想好的方面。

　　4.Take it easy, man. It's not a big deal.

　　放轻松，老兄。没什么大不了的。

　　5.Hi guys,there is no pleasure without pain in the world.

　　伙计，这个世界没有无痛苦的快乐。

　　6.Keep your chin up. Everything will be all right/OK.

　　挺直腰杆子。一切都会好起来。

　　7.Don't get down. Things will work out eventually

　　别消沉，事情最后总会有办法解决的。

　　8.Be more optimistic! Its not the end of the world.

　　乐观一点!又不是世界末日。

　　9.Hang in there!/Stick to it! The victory will go to you in the end

　　坚持下去，胜利最后会属于你的。

　　10.Don't worry, be happy!

　　别担心，快乐点!

　　11.Keep smiling.You can

　　保持微笑，我永远值得你信任。

　　12.Laugh, and the world will laugh with you.

　　如果你笑(乐观)，世界也会陪你一块欢笑。(有点琼瑶，抠脚汉子慎用)

　　13.Anyway , tomorrow is another day.

　　无论如何，明天又是新的一天了。

　　14.Heaven will always leave a door open.

　　天无绝人之路。

　　15.Keep moving.There are other fishes in the sea.

　　继续努力，天涯何处无芳草。