1. Unprepared, he grit his teeth and went through with the math exam.2. We must brace ourselves to cope with the trials of this terrible year.3. We must brave misfortunes as they occur all the time.4. This bodybuilding training course is difficult, but you must tough it out if you want to lose weight.5. When he was pulled over by the police for driving under the influence, he bravely took the alcohol test and passed it.
 go through with something brace oneself to do something brace oneself for something brave something tough it out bravely do something這類的詞相當多，請參考例句。go through with something = 硬著頭皮做某事brave misfortunes = 硬著頭皮忍受不幸tough it out = 硬著頭皮去做
The thesis of your essay is completely obscured by your flowery langage.