Try the American Bonsai Society (ABS) mentor program
http://www.absbonsai.org/mentor.html
They will pair you up with someone in your region. This costs a membership fee, but it's well worth it, as the ABS membership includes a subscription to their magazine and gives you access to the Society's library of books and videos. The individualized instruction you're after is offered by bonsai nurseries for a fee most often.