What would make you happy?
Some people say things like;
'If I won 10 million dollars I would be the happiest man/woman on Earth'
'I wish I could marry a woman who has a body like Angelina Jolie'
'Life in Macedonia is so hard. If only I could find a way to emigrate to a more prosperous country'
But as people get older they start to appreciate more the things in life that you can't put a price tag on. Things like having a family that loves you. Being in good health. Having friends and relatives that contribute to the enjoyment of your life. The satisfaction you get from helping those in less fortunate circumstances.
I think that these are the things that makes a person fulfilled. Not the luxury car that you drive. Not the yacht that you sail on with rich folks. Not the million dollar house that you live in. Luxuries can be replaced, but you can't replace your family.
When you are getting ready to go to bed at night try to remind yourself of what is it that you have in your life that you can be truly grateful for and all those worries that you had about superficial things will start to seem insignificant.