why some person help you without any expectation..

In the past, I thought that everybody in the world was dangerous and greedy. They want to abuse you to receive their desires. Because of this I was alone. I said to myself if you are alone, nobody can harm you, so I should be solitary. Sometimes I needed a person to talk about my problems with, or maybe a boyfriend that I could have a date with and be close, but I just was terribly broken and stopped myself to raise a hand to be friends. [I'm not sure I understood you correctly here. "Raise a hand" as an English idiom for "volunteer" as a verb made sense to me.] Everybody around me thought I was a pathetic girl. They thought truly :) [In English we often say "They were right", but I liked your phrase, so I just put "think" in the past tense and made "true" an adverb.]
But in later days I was overcome with good guys that spoiled my ideas. They were lovely and helped me in my hard work without any expectations. Are you kidding me? Is it possible? These are some questions my mind asked me. And I have a good answer for them. Of course, my pessimistic mind! People are a symbol of God on Earth [We usually capitalize "God" when we use it as a proper name in English, and to make things more confusing, we usually capitalize "Earth" when we mean the planet and leave it "earth" in lowercase when we mean soil or the ground or land.] So is there any response to why such a kind God created bad guys? All people have a kind soul, but some of them, because of many problems that they have to face,their soul is going dark and angry. Be careful. blue blood.  [Is this a Persian idiom? In English a "blue blood" is a rich person.] ;) God wants you to be kind.