As with anything that you choose to do, I would suggest to first define your goal. there is a difference in making Luthierie (did I spell that right?) a profession or a hobby.
For either, the beginning should be fairly simple.. take the passion and warefare approach - because even if you love it, it is going to take a toll

For many of us here, it is a hobby - which means learning from the master luthiers that hang around this forum, other forums, and mess with wood ourselves with a somewhat investment in workspace and tools. For the professional ones, there is a financial commitment, a substantial initial investment and I would also say that being an apprentice for a few years is an important step. two of the questions to ask yourself if you want to get into this professionally is 1) can you financially commit to that career path? 2) will you enjoy this work 10-20 years down the road ?
For me, this is definitely a hobby. I love everything about it, I'm willing to put spare dollars into it, and the time required, but I dont see a path for me to do this full time, nor do I want to (I LOVE my Job). And I can tell you that for me it all began walking into a guitar shop, checking out the lefty section, seeing the bad craftsmanship on top dollar brands, and deciding to pick up the interest. then spending a year here, watching people like Barnaby develop, great advice from people like Sully and Freddy to the point where I knew that even if it turns out to be something I wont like to continue pursuing - I want to at least try. A year and a half later, I'm still building and learning.
Barry.