If you want to live a happy life, tie it to a goal, not to people or objects.
People come in your life to teach you. You must not ignore them, but learn from them and always respect them.
You obtain objects to help you lifting up in life and to achieve your goals. You must use them carefully and timely otherwise there is no use of having any of them.
Most important thing to always remember in life is your goal. You set your goals, you must struggle to achieve them. Once you achieve your goal, set another goal to stay determined.