How do ppl know it???

Sometimes I wonder how do ppl know what they are kinda meant to do in their lives. I guess nobody really actually knows it. But I think I have heard a few, very few lucky ones who just kinda know, they don’t really consciously know, but it’s just there and they do it. It’s almost like the school medic in the show ‘sky high’, her power is x-ray eyes, so, it’s like she is meant to fix broken bones, no other job will suit her better. Lame example….but of course people dun really have to know what they are made to do, they can choose one and do well on it, equally the same. It’s like…my old man, if he doesn’t go into fishing, what will his career be then? He might be better off, who knows……if he just stick with electronics at that time, will he be a more loaded person or a less tense person or a happier n satisfied one for that matter? Or the opposite? Im sure lots of ppl have such thoughts before. It’s not a matter of successful career or not, it’s more of whether someone really feels so right about what he/she is doing. They feel great about what they do and rewarded with satisfying means of living aka money, that will be the perfect scenario! Btw, somehow to me $$$ = success…..it’s not that im complaining about a job or a business which I have no interest or passion or whatsoever,as long as it gives me $$$, I will stick with it. But the thing is, isn’t it nice to know or somehow get into something in which you have a knack for and be successful ($$$)…..no need to be extremely rich, but if that can be achieved why not, as long as basics need met, get the things I like and enjoy, which don’t cost much, I am talking about me here…..emergencies can be faced with greater assurance…..life, no matter what, have to be practical about it….damn I always sidetrack, the thing is…if I am one of those fortunate ones who just somehow subconsciously know….how nice………….but im not…..and im not young anymore, no more a teeny….now I know being teeny is the best, just like kei said, the period of time when you don’t need to be responsible and still have ppl to run to but have the brain to do things the way you like on your own. Back to me being not young anymore, I must think what I want to do next man…..or at least learn, or at least know what the real thing is like…so far my life has been too structured, im not complaining about rigid structures, but the real thing’s not like that….am I thinking too much like my frens always say? They say life will take its own course naturally, eventually, so no worry, but…….a person still got to do something to make things happen right…………………………so..back to the question…wot to do? And how do I know it’s gonna turn out alright…….just alright…………….