Found out what it is that you love to do, what you really has a passion about, what you feel are your goal in life – and then go for it! Write it down, set small goals for achieving it and then focus all your energy on this! I believe this will make you the happiest, and what the purpose of life is really about: finding what you love and then doing this, and not just “follow what can provide you money/a career etc.”. In that way you won’t end up happy. Find out what you truly love to do and do this! Believe in it! Believe in yourself! And work for accomplishing it!