阅读下面短文，然后按要求写一篇150词左右的英语短文。
I am a 19-year-old girl named Gina. When I was 17, I gave blood for the first time. It was a little scary because I don’t like needles and I am afraid of looking at my own blood.
The blood drive was in the high school gym. I determined to help because I had read the poster about how much one pint(品脱：计量单位) of blood could do for someone else.
After signing a form, I lay in the chair. When I waited for the nurse to get to me, one girl I didn’t know well noticed my nervousness and sat next to me, telling me what a good thing we were doing for someone else. It took a long time to get a pint. But somehow, I suddenly felt like an adult when my first blood donation was finished. I had overcome my fear in order to do something selfless that would benefit others.
Now ,I still donate blood. The Red Cross calls and invites me to blood drives, and I always try to go. It’s not scary any more. It’s something you do for others, without getting anything in return.
[写作内容]
国外的很多青少年都把献血视为步入成年的标志。请你在看完所写的短文后，就“献血的意义”这个主题写一篇短文，说说你对献血的看法，内容要点包括：
1.以约30个词概括短文的要点；
2.现在社会上人们对献血有哪些不同的看法；
3.你自己对于献血持什么样的态度， 为什么；
4.你认为献血对于青少年思想成长的意义。
【写作要求】
1. 字数120-150
2.可以利用实例或其他论述方法支持你的论点，也可以参照阅读材料的内容，但不得直接引用阅读材料中的句子。