英语写作时一些好的巨型

❶ 请英语好的朋友帮助纠正一下我的写作：“同时fail掉这门课的影响对我是巨大的，作为在30。。。”

At the mean time, the effect of failing this class can be vital to me. As a student losing both parents in my thirties, I have lost all my incomes. I will need to pay a lot to take this failed class again, and I will have to take an extra semester. When I think about these, I can only feel deep despair and self-accusation.