How do I deal with anxiety towards the future?

Hi, so I'm dealing with lots of anxiety towards the future. Today was the last day at my job, and on Monday, I'll start a new one. By any measure, I should be happy. I'm leaving for more money, a title-bump, and salary-increase, but also, somewhat scared about the future. 

I'm also 28-years old and living with my folks. I suppose I wish I was more towards the end of my life then the beginning. There is so much about my situation that I cannot explain, but I've always been a traditional birds-nest kind-of-guy, so trying to be the first one to "make-it" is kind of hard, and not to mention, trying to break away from the family-nest. 

What are some things I can do to cure my anxiety towards the future?