谁能帮我翻译一下这篇英语文章

Whatever one does, one should do it with confidence. If one has no confidence, there is little possibility that one can achieve anything when faced with hardships. This truth seems to be self-evident. In reality, however, we do see a lot of people who always complain that they lack the ability to do something or that their difficulties are too great to overcome. For some, this might be true. But for many others, this only shows that they have lost heart. Why do some people often feel frustrated even though they are capable of doing something? In the first place, these people don’t have a correct estimate of themselves. Secondly, there is another possibility that they exaggerate the difficulties