Question of Survival

As people always say life is hard. So what will u do in order to survive this unfair world. There are 2 choices to survive in this world, either run for your life or fight for your life. Next question is when u should run and when you should fight ? Honestly i don't really know the answer because these choices are somewhat simple but tricky. For example when u run for your life people will start to think that u can't stand on your own ground. But the next question is where to stand if there is not even a ground!!! HAH tricky isn't it ? However, when u fight too hard some people will call u stubborn. Sometimes i feel really confuse and i'm start asking myself with questions such as am i running to far?have i ever put a fight ? And the last important question is What is really important that worths fighting for in this life? Anyone can help me answer all these questions? If u are able to answer this question then u don't have to worry, the game is on for u and u'll manage well.