If I Had a Hammer (dulcimer) but no left-hand
Adventures with 'other' instruments...
You are certainly right, @john-gribble, for lessons never hurt. However, sometimes they are limited in their effectiveness. Right now I find what is holding me back on the hammered dulcimer (which I've only been playing about a week!) is technique. I understand the basic layout of the strings and can find lots of melodies either from books or by ear, but my physical approach to the instrument is poor. My left hand especially does not have the strength or confidence that my right-hand does. Were I to pay for a private lesson, I would just ask for exercises and would then wait a month or two for another lesson while I worked on those exercises. I was hoping to find those exercises on my own. So far I've been playing arpeggios, alternating hands. And I've been working on scales either one hand at a time or alternating hands.

See how infectious the folk instrument world can be?!?