Basically, the fear of the future is completely rooted in another fear - which is the fear of failure. Too bad we come from a society where were surrounded with instruments of fear and obstacles. However, creating room for failure will eventually create more room for real life problems.
The big question is, is living the moment sufficient for us/
No one can answer that question other than yourself. However, in an attempt to live in the moment, there's a need to appreciate the things we already have.
The 14th Dalai Lama says...
“The purpose of our lives is to be happy,”
Virtually, in an attempt to chase the goals and dreams we crave for, it'd be ideal if they'll come with happiness and satisfaction. In truth, life itself is a gift that creates a future we want for ourselves.
Once again, don't sacrifice the moment.