Patience and Understanding...???

I really don't understand this whole grown-up thing. This is the time I am supposed to look forward to, something I have been dreaming of my entire life to this point. Why do I feel so empty? I don't feel like I have anyone to share this with, I feel so alone. I graduated into a job market that is less than friendly to my degree, my girlfriend (the one I thought I would spend the rest of my life with) dumped me a month and a half after I graduated. I just want to run away from it all.I want to see the world, but I can't. I don't have the money. I have a decent job...but it pays the bills. I want more...I want a life...one which I can be proud of. I want to move on, forward. I am sick of this same thing over and over, I am sick of being alone. "Is it a waste of time...So why are you running away" I feel like I am missing something, something is hiding in the darkness waiting for me to find it. I do not have the patience for it to come. I want my life to start...now...