I'm currently doing a highish level Audio/Music engineering course and the top thing I've learnt from my teachers is that the jobs are in the live work. Whether that's front-of-house, monitoring, planning or just grunt work. They said there was a single job going at some world-renowned studio (unfortunately I forget what it was called) and about 903 people applied and the pay was only £18,000 a year or something. Can't remember the specifics as well as I'd like, but yeah, that's basically their point. Don't expect to work in a studio without working to get there.
The second most important thing is, as lame as the term is, networking -- getting to know people who can do things, or who you can do things for. If you want to do studio work, the most likely route there that I can glean is to wind up being taken on by a band or something for live work, and them deciding they could do with you working on their studio material too.
Thirdly is to just work your arse off, volunteering for all kinds of jobs in everything to get a reputation, things you can put on your CV/résumé whatever, and get those contacts in the process. And just volunteer for everything you think you can manage, even some things you think you can't, so long as they're not too far outside of your field of knowledge. What thrashinbatman says about finding local bands is very good advice. But be up for anything of course, not just metal.
Just remember that in the media job market, your reputation and contacts are your most valuable assets, since the good jobs nearly always go to people who are known to the people offering the job and have proven their worth.
As for schooling, I had absolutely 0 music education outside of compulsory stuff (which is peanuts of course), and still managed to end up in a pretty well accredited course -- I just happened to be in the right place, since I'd already been at the university doing a dumb course I realised I had no interest in. Look for opportunities. At the very least look for low-level courses at colleges or something- they may or may not be the best standard, but they should likely introduce you to important basics, and importantly, put you in an environment with other people doing the same thing as you -- some of whom may have links, or even get or become links in the future. And a qualification is a qualification at the end of the day as well -- something you can put onto your CV/résumé to get you one step up the ladder. Education does help if you get it, although it's likely just a matter of working even harder if you can't.
Don't expect it to be easy though, and certainly not inherently glamorous!