What I want to be?

I have been thinking about a lot of question about my life recently. What kind of girl I want to be. What kind of future attract me best? Is it good to take things from someone else even though they are willing to or don't mind?
One thing for sure, I want to be happy and content with what I already have.
Well... the midterms are going to end and so far, this is the only thing make me feel crazily happy.
I really enjoy my life because I can do almost everything I want to but something is wrong recently. I am changing and I don't know it's good or bad. I am satisfied with my life. However, sometimes I think I am not acting properly. People changed when people around them changed. When people see me in a different way compared to before, it makes me feel complicated. However, I made up my mind. No matter how people treat me or see me, I just have to be myself and I don't have to change anything unless it's a shortcoming.
I hope I can be polite to people even though he or she is a rude person.
I have to be humble even though I meet a person always likes to show off.
If someone did something to me that makes me feel uncomfortable, first, I have to think if I did it to other people, too before.
I hope I can be really thoughtful to those people who care about me.
Every week, I exam myself to see if I did things right but sometimes people are blind. I wish all the friend of mine can tell me whenever I did something wrong.