fitting in

why do we need to fit in?
why do we feel like we need to belong to something?
i believe we can do fine on our own, but perhaps it's the jealousy that we feel when we see other people in groups that makes you realize of your loneliness.
thus, that created the sense of belongingness. we don't feel our existence is justified until we belong to a certain group.
but if we just can't fit in into this group, it's not enough reason to be sad and engage into self-pity because a person can be awesome on their own. you can do great things without other people's help. you are valuable. you are important.
screw whoever said that we should belong to something in order to feel good about ourselves, because at the end of the day, it's just ourselves whom we trust and depend our happiness, and not anybody else.