To accept your daily life and enjoy it to the full. Happiness comes within you. It is not outside. If you are satisfied with your achievements, then I am sure you are a happy person. Anything that moves you to do something, will give you happiness in your life. If you do not struggle to do your best in life, you will feel miserable rather than happy. Happiness therefore, comes from the soul, from your heart, from your inner thoughts.
If someone asks you Are you happy? Yes I am. Because I am trying to do my best as a person and try to reach my goals in life. And happiness also comes when you share things with others. Even a simple smile will make you happy.