Never something I've had swathes of, but I'm getting there slowly. Adopting the fake it 'til you make it attitude has been the most successful approach so far, and it's certainly come into play recently.
Some recent groundbreaking and not particularly interesting news is that I've joined a gym. I have genuinely, absolutely, no idea what I'm doing. I've been a pretty regular runner for a few years now, and I keep active and used to do circuits just in my room, but a) it's very rainy at the moment and b) I got fed up of my downstairs flatmates wondering whether I was having a seizure, moving my entire room's furniture around, or anything else you might imagine.
I've been twice now, and I already feel more confident. Confidence is experience, and everyone will have had a first experience at some point. So far I've been watching and learning, and also just asking questions. There's not much that won't be covered between the two.
If you stride out and have one or two safe things you know what to do with, you can go anywhere from there. Simply because I tend to walk fast I've had people ask me directions in cities I'm also visiting for the first time. Apply this to most things and it'll get you pretty far.