Are We Born for the Sole Purpose of Purpose?

Many have asked why we are here, why were are born. My personal philosophy is that the meaning of life is to be happy.  As children were happy.  We spit up, drool, pick our noses, crap, and we laugh about it.  Babies cry because they need something - changing, food, injury - but that's not sadness.

A lot of people who teach personal growth/spirituality state that we all are born with a purpose.   And they also say we know our paths since childhood, and it isn't until well intentioned adults impose their own view of what reality/practicality is that we veer off it.  Let's assume that's true.

So if you're in a job and you aren't doing well in it, despite how much and hard you try to do well, is it a sign that you need to change?

Or if you're with someone and everything is going well, the connection is there, the core values are there, is this the person you're meant to be with?

Your parents divorce, leaving you to play on your own because you don't feel like making friends.  You spend your time pretending, fantasizing, making characters, and gain the skill of story telling.  Should you story tell?  (Robin Williams)

What about you go to Hollywood and you audition like crazy.  You love acting, love the arts, love the the city of angels.  People say you're a great actress, but every single audition yields nothing.  When is enough enough?  Or is there a limit?

I do know signs are given to us.  I mean, if you're at a job and don't like it, ask yourself why?  If the reason is because you want something better, or the job holds no meaning, move on.  Right?

Or if you're with someone and everything seems to be working, then you would continue to see them.  Yeah?

And what about reality/practicality versus dreams.  Failure happens, but isn't it meant to help guide us like driving a car?  Veer too close to the curb, turn the wheel.  Hear your tire hit the middle road markers, adjust your wheel.  These things have lead me to become a writer.  Since I've made that decision and committed to completing a book, I've felt content.  I've even found myself not really wanting to buy things.  Not the way I used to anyways.

Tell me what you think?