It is said by the people that if we want to learn about life then we should listen to the advises of our family and friends as well, which means that we should firstly listen to our parents because they are the one who know better about life. Parents always give useful piece of advise to their children and they are the real well wishers of their children, on the other hand friends are also considered as well-wishers and some friends also give advises every time for our success, but some of the friends are really not our fellows in real life so they always try to distract you in some fields of life by giving some useless advises.
Moreover other people believe that personal experiences also give us good lessons about life and we can learn a lot from them. I contemplate that personal experiences teach us well about life , because what you face in real is what you learn but it does not mean that we should deny the first statement of parents advise and friends advice, Parents always want their children to live a happy life and always try to work on this to make their children life a happier one. and when children grow up then parents can only give them advise and one who takes these advises seriously i think that he or she can be successful in life.
In my opinion these both statements have valid results, but the most preferable is the one about learning the life from personal experiences.