求英语大神解答一下

I write this letter to say that I think I am very suitable for the volunteer position.
I have many advantages, I am good at English, I love to watch English movies, listen to English songs, my spoken English is very good, so I will not have any problems in communicating with others.Second, my character is very cheerful, I will quickly become friends with others, to help others solve the problem.And I am very careful, I also like sports.Third, I often take part in volunteer activities, so I have rich experience.Finally, it is my wish to be a marathon volunteer.
I promise that if I can be a volunteer, I will try my best to provide good service to others.