Please correct my grammar's mistakes :)

Please correct my grammar's mistakes, thanks!

I chose to interview Dinh, who is an active, assertive personand a business major at ACC. Although he is not a math and sciencemajor, he has already taken a lot of different science and mathclasses. These classes include algebra, general chemistry one andtwo, general physics one and two, and geometry, etc. Right now, heis taking statistics and investments. Dinh told me that he likesbusiness world, where he has a chance to meet and communicate withdifferent kinds of people and where winners and losers aredetermined every day. He thinks that the harshness and competitionin the business world will make him progress every day to perfecthimself in life and he enjoys that. Dinh is open and friendly in myview. He is not a close friend, but he was willing to help me whenI invited him to my interview for math’s real world examples. Heseemed very excited for the interview, and he said that he isconfident in his abilities to answer my questions. Dinh likes realworld’s examples and so he says that he can start to answerquestions now.

Before conducting the interview, I told Dinh that he will be amain character of the interview and my job is just asking himquestions and no more than that. The purpose of the interviewdiscovers and knows about his thinking and thought process when heanswers questions. Therefore, he has a right to express histhoughts, whatever he thinks that describes correct answers toquestions; feel free to share his ideas and don’t be shy to explainquestions.