I think it's just because you are not good at talking to people.
the most important thing in one's life is communicate with others.
Just be happy!talk with others bravly~
i have a foreign teacher.he is funny and nice
everyone likes him.
he says he is so happy everyday because even thouth he is not rich but he can do the things he likes to do.he joined a war when he was young.he's nearly obituary.but he didn't.so he is really happy to see anything ,anyone in the world.i hope this story could help you