Future

Should people worry about the future?..There is no way to tell what will happen in the future. Sure you can say that you wanna do something in the future and make plans but who is to say that they will actually happen. How do you know they wont change? Maybe we shouldn't make to many plans about the future because it will just make us worry and then if they dont happen just leave us disappointed. But sometimes I can't help but keep dreaming about it. I have to know what will happen and if it will all come true. Its really have to just go with the flow sometimes...