This may not be the best forum for this type of advice. You might want to try: http://www.reddit.com/r/Blogging/

Also, before you quit your day job, read lots of stories like this one:

"Time to Hang Up the Pajamas: I learned the hard way: while blogs can do many wonderful things, making huge amounts of money isn't one of them."

http://www.newsweek.com/id/183666