All i'm saying is, i've been doing magic for nearly 15 years, and haven't had anything close to a 'in real life' mentor... I've had nudges in the right direction, sure, but I think the story about the old timer giving the kid magic homework is just a bit of an idyllic, idealist view on the learning process of the magician, and something that rarely actually happens. I just think a guy shouldn't be made to feel like he's learning 'incorrectly' just because he's asked for advice on a forum.
I'd hate to burst your bubble but that's simply not so, there are many an old timer willing to teach and guide the problem is, there are a lot of young people that don't want to LISTEN or adhere to the encouraged DISCIPLINE. I know this first hand in that every "student" I've had on line that followed my guidance "won" when it comes to moving ahead in the craft and every individual that resisted has gone down in flames for a period of time only to wake-up one day and realize they should have listened... if only you could see the long list of apology/thank you eMails. . .
I'm betting you're one of the head strong type that don't do authority overly well.
There's always a logical reason as to why young people doing find a mentor and it's usually based on their personal attitudes though, when it comes to a physical relationship, distance and location can become a detour. My primary mentor lived a good 45 minute drive from me and yet I saw him nearly every weekend for 5 years. Even my "lesser" Mentors, the handful I knew from the Magic Castle as well as those I'd meet here and there for short periods of time during my travels; we always had ways of keeping in touch when I was in the region.
When it comes to "learning incorrectly"... you wouldn't have survived a day with Vernon. He had a nice hickory wand just for cracking knuckles when people kept screwing up on things, many of the old timers were known for their "hard knocks" methods but the result was always self-discipline and understanding followed by the student becoming "superior" to the rest. To me, the temporary hurt feeling is minor, compared to the embarrassment one will come to know for doing things sloppy & "wrong".
BTW. . . you don't have to necessarily follow the advice of your mentors, just weigh it and consider why they are being a jerk about something. I will lay money on the fact that you will come to understand them down the road as you mature in the craft. Vernon used to throw a fit on me for producing little bean bag Rats at the end of my cups & balls but I never stopped. I understand why he felt as he did in that such things really do limit the sort of clientèle you are going to have --
self-will gone riot tends to blind us of such things until it's too late. But there are other things and other ways to approach your work by, that includes the suggestions shared by our guides. That's actually the point to it all. . . learning from their experiences and "wisdom" rather than getting in our own way and repeating many of the painful mistakes they made at our age.
Finding a Mentor can and does happen even now, it's not that rare a deal for those that honestly want that kind of rapport with another human being. At any given time I have at least a half-dozen "kids" I'm working with and could have more given the requests I get. I know of other old timers who do have more than that and we each have our one or two "golden child" types from within said groups -- the one that we know will go further than the others.