Do you think that happiness lies within you? Or does it depend upon other people and external things

Happiness could be affected by other people and external things, however, the primary factor that can make us feel happy or not is up to us.We cannot fundamentally convert the feeling of sadness to happiness by changing our view although we might alleviate the level of sorrow to some extent by trying to look at the bright side of things.The level of stress one feels even for the same incident is different person by person. It is because each person is different in perceiving, responding, and reacting to what it happens to him/her. We might not have a power to predict and change what will happen, however, we can manage to handle the issue to lessen the impact.It is true that it is not easy for us not to be affected by others or external things because we are all social animals and we cannot live a day without being socialized with others. We feel happy and unhappy because of other people. How can we keep remaining aloof because we are not a saint? However, let's try to think positively.