Are we born to make people happy?

I was realize that I'm not being myself. I do everything is just to make others happy, I always think for others even though i know i was reluctant , i keep struggling myself in this awkward situation.
Of course we do want all the people surrounding us live happy-happily, but who will think and consider about your feeling? I know this society is an unfair society. I learn to give out without expect for pay back. It is not easy and sometimes I feel tired about it. Too many peoples were taking granted for what they get. Look, people treat you good is not a necessary , we must learn how to appreciate. They can treat you bad as cruel as they can, but they don't, why? think for the reason why, so please just don't be the person who only know how to take it for granted. Unfortunately, nobody know this.

I was hiding myself, even my feeling, all the way, in this few years.
I don't wanna ask, doesn't mean i don't care.
I pretend like nothing, but it does hurt me a lot.
Why? I'm scare of hurting other peoples. I scare if I show that I was sad, my friends will feel sad together with me. I scare I will affect their emotion.

I was tired. Can I have my own little emotion? Can I ? Can I be the one who take everything for granted just for temporary? I don't want to be a person who always take care for other peoples feeling. Can't I just be a little selfish?

Being a good person is really a hard work.
Being a bad person might not that hard.
I think i've got the reason why good person getting less and less in this society nowadays.