About, eh, middle school time, our whole town just sort of stopped doing Halloween stuff. Fewer houses, fewer trick or treaters, nothing to do. So I started haunting by dressing in costume and handing out candy.
Let's say it's grown exponentially from there, and Halloween is coming back. We started drawing a crowd, the guys at the Mortuary in the next block started haunting, and the last 5 years the town has done TOT on main street (conveniently a block away).
Don't lose the spirit. Find a way to make it fun for yourself, and others will find you. And I have plenty of adults who show up at our home haunt just to see what we've done, because they appreciate it. Get a good costume/mask, put up some lights, get the old cheesy indoor nostalgic decorations out of the attic. Start slow, it'll come to you. If you've got neighbors, you've got an audience.