Please help me to correct my essay^_^

I did appreciate any comments and suggestions. I'm sorry because my English language ability is limited^^. I know this essay 's got some problems but i tried my best . ^^

"Every one should be willing to donate their body organs for transplant when they die". Do you agree or disagree?

Everyday, hundreds of people waiting for organ transplant to give them a second chance at life. In my opinion,  I agree with that statement above. For me, being an organ donor is a wonderful thing, it's beautiful to give a life to those who thought they had lost it. So, everybody should be grateful and delighted to donate their bodies after death.

Firstly, if we could help someone live, our dead bodies wouldnt be pointless. We have no purpose use our organs after we die. Why we dont give our parts of body to someone who can use them?. We just think about it : we donate our organs and many people can be helped or saved. We will understand how our organs are meant to others.

Secondly, there is a saying goes that:" if you dont think about someone, no one will think about you". For example, you just image that you need a heart from someone's organ. You will die without a healthy heart. You just think that if nobody cared about your circumstances, how would you feel? If all everybody all over the world were selfish, all dying patients would die. I strongly believe that if you think about someone's benerfit, make sure other people will think about your benerfit and donate organ to you if you need it.

Finally, we are human. Human always has love and humanity. Since the human was born, they have been living and surviving together. It is undeniable to suppose that" humanity love always exist in everybody's heart". So, I feel strongly no one will be happy if they see someone in a serious situation. Nobody agree that you could help someone to escape from death but you dont want to help.

In conclusion, there is nothing right to say that" you couldnt donate your organs after you die". Because dead people actually dont need their organs after they die and how important organ transplant are to dying patients waiting for new hopes. In addition, humanity love expresses when we help disadvantage people to escape from death. I think organ donors are heroes to make our world better and more meaningful.

*Hi julie, i've just come back home recently because i did have a long holiday with my family ^^.

I'm not a lazy student^^ but i dont know how to re-write the second and third arguement paragraphs. I really need for a help for these problems. Can you help me to organise them ?

The second idea I mean that " if you were selfish to some one, you could help but u dont want to help, noone would think about you when you need them ".

The third idea is that " humanity love inside every one's heart since the human being appear on the earth, so no one will be happy if someone is in a serious case".