I think my life is colorful, so I would compare my life to the rainbow.

It has seven colors: red, orange, yellow, green, blue, indigo and purple. But it can't become disorderly. Similarly, I would like to try something different. Take, associations, races, friends even school, for example. I enjoy the manifold of life like rainbow. (不懂) 建議改成 These seven colors make a great combination. Similarly, every part of my life, including my family, friends, studies and so on, enriches the color of my life. 

But the rainbow lasts only for a short while, and so does my life. Therefore, I must cherich every minute of my life and take every chance of challenge and growing.

Finally, I hope my life will have the gradation of color in the rainbow. That is, I will become more and more mature in every stage of my life.