A blog can't be a bad place to start, so long as you can get some kind of readership and - probably more importantly - regular content production.
It's never too late for education, especially when it comes to journalism, but that's entirely your call.
I don't really know that there's anything else I can offer you! Do as much as you can. Send out your resumee anyway, start a blg and produce regular, quality content, and look into getting more education. Look into jobs in related fields (journalism especially) and do hat you can to make your resume look more and more attractive while making your body of work more and more exemplary.
Hell, maybe bug some of the guys here at VGChartz to see if you can get a spot as a writer. It doesn't pay much yet to my knowledge, but regular and high-quality content on an extremely visible site like this one can't do anything but help.
