Good writing is about finding and exploiting anecdotes that resonate with the reader. In storytelling, it's OK if you only make one point, as long as it's a good one.
Think about what you do from 9 to 5 each weekday. Now imagine you put that much effort into something you really believe in. It's incredible what you can accomplish when you have both the interest to do something original (which everyone has) and the time to make it happen (which few have).
Make sure you're realistic about what you can do, but if you have a good lead with something, making the plunge into full-time writing is the only way to go.
For me, working in the fashion industry is about getting to meet the minds behind the brands. Sure, there are nice dinners, events and shows - even the occasional freebie - but the best part is getting to sit down with and talk to people that have done great things. You quickly realize that no matter who you're talking to, how famous, brilliant or wealthy they are, they are just "people."
Independent publishing gives everyone a voice, and those with a voice to which people inherently want to listen will find a way to the top.