Connection Between I and O

Koreans belive the relations between bloodtype and personaility, and I do to an extent. So, in this time, I intend to compare the belief of Koreans with my characteristics.

'O' is my blood type. First, people who have same blood type are sensitive and objective. I don't know well about common sense, but I'm objective, for example, when my friends quarrel with each other, I try to find cause which they argue to solve their problem, and I objectly ask them why you are did. Even they are my best friends, I always do that.
Second, 'O' is rewarded when they are in hard and difficult situation. Yes, it's right for me. I like walking, but sometimes I have to work for a long time regardless of condition. It's very painful, but I always keep going and feel the sense of rewarded when I finish that.
 The third, I'm pure! People believe that someone has blood type, O, is naive. Whoever talk to me "You're not pure.", I'm pure!
The last is about weakness of  'O'. They extremly worry about other's thinking of them. So, they has a bluff. But, it is just defence for themselves. They can be harmed very easily in being betrayed or treated humblingly or dealt with ill will. One more thing they do for protecting themselves is to keep watch people. They carefully watch their partner, and consider him or her as a friend when they decide he/she does not have intend to hurt me. I extremly and rightly agreed that. 'O' is seemed like lively and talktaive, but they have uneasiness in their heart. 

I'm suprised about matching between my personality and belief. I don't belive entirely thinking about relation between person and bloodtype, but I think Koreans's belief is truthful about 80% to some people like me.