Hello Calvin : You could also say "to pull oneself together".

the above translation is correct. 另外的翻译是 'to summon up courage' or 'to force oneself to'

brave it out, I think this is the best translation. for example: I have to brave it ourt, though I know she doesn't love me.（尽管我知道她不爱我，可是我还是得硬着头皮上。）