While listening to a podcast (probably Tim Ferris's), I heard someone discuss a quote (which I will now misquote because I can't remember it or find it again) that goes something like this:
This struck me as one of the best ideas I've ever heard. If you had an expert in ANYTHING living next door to you, wouldn't you be missing out on a great opportunity if you didn't ask him for lessons? If you could attend a lecture from the leading insert-your-favorite-discipline-here, shouldn't you go? I've had a lot of good teachers in my life -- academic teachers, physical coaches, and spiritual leaders -- and I've always learned more from them than I ever could on my own. They taught me things I wouldn't have thought to try to learn. They are worth seeking out.
I challenge you to find a great new teacher -- today -- and sign up for lessons. It can be in anything. Just do it.