请英语高手帮我看看我写的这篇英语自我介绍是否有语法错误 有的话如何优化 Thank you so much!

请英语高手帮我看看我写的这篇英语自我介绍是否有语法错误 有的话如何优化 Thank you so much!
I am so glad to introduce myself to you.Five years ago,I was a shy boy,I would blush when talking to girls.Until I was admitted to a university,I found that academic performance is no longer the most important thing,You have to enhance your comprehensive quality.So I joined many school clubs,such as chess associations,associations of love,then I joined the Student Union.I worked as a tutor,during summer vacation,I went to a landscape company for practical training.These experiences let me learn a lot of things,It taught me the importance of collaboration with people,No one can rely on their own strength to do a concert、No one can rely on its own strength to do a project、No one can rely on its own strength to do such a job interview.You need a lot of help,In order to get help from others.You have to know how to pay,how to Thanksgiving,how to work with others.Face with the new work and new environment,I will put the most enthusiasm to my work.