For instance, I am at work 9 hours per day 5 days per work every week, I have a wife, two dogs and twin boys that are only two months old. I have a mortgage and car payments, student loans, yet I find the time to work on my startup every night.
Lots of people have told me that it's not a good idea, that I won't make any money with it and I just won't listen.
Hope that helps you.
I'm not sure of your experience or personal life as it's not stated but if you've been working a steady 9-5 as a Network Engineer for a few years you likely have some money saved up I'd assume? What's stopping you from renting a small place in the U.S. or Europe (or even Australia?) and start looking for companies you'd want to work for?
On a side note I'm not going to pretend like I'm some huge risk taker, but from your post it seems at some point you're just going to have to leave your comfortable job and jump. What do you have to lose? If you continue down this path you'll only become more depressed. If you move onto trying to make cool shit and do well, then congrats! If you so happen to fail or hate it then there will always be another 9-5 for a big company to come back to.
Some food for thought, good luck.
Having said that, in my humble opinion, the answer to "how do I break out of the comfortable life?" is: you just do it. Not quite sure how else to say it. If you believe in yourself, and you believe in what you're going to build/start/operate then trust me, your mind and body will scheme up a way to make sure you do it somehow.
Hang in there. If it's meant to be it will. Good luck man.