Okay, that's a tough one, since I love to give advice and it's hard to stop at just one piece.
I'd say, start at your doorstep. That means start small and close in, get successful in a small space where you can really focus your efforts, and then repeat those successes at larger scale and with variations. That would include (see, I can't stop) building up the soil with
compost and mulch until it's so rich that plants explode out of it; stacking lots of plants into a small space, and putting the things you love, whether veggies, fruits, flowers, herbs,
medicinal plants, or whatever, into that small space. That way you'll reward yourself for your efforts. Put your garden where you'll see it and where it's easy to take care of.
The next thing to do would be to find other people doing
permaculture and learn from them.
Permaculture is about relationships and connections, and that very much includes connections with other people.
Permaculture is as much a point of view as it is a set of principles and techniques, and in a culture that focuses mostly on things instead of processes and relationships, it can sometimes be hard to wrap your mind around the interconnections that permaculture makes. Being with others who get it really helps.