Can you help me fix english grammar

March 20
The company I was interning at today feels boring. When I started my internship, I found it difficult to make documents. One day I was watching an employee do things. Then I slowly realized that, in fact, they were all ready for the document framework, and some of them were posted immediately. I feel that because they are too busy to teach me how to do things. If one person is willing to send 3 days to supervise the intern, that would be great. I am now confident that I can speak Chinese and understand English. I believe I have enough knowledge of import and export. More opportunities for development in the future.
Please help me correct my Chinese expression