Just don't take the trail on the left. Sorry, just a little joke from last weekend.
But seriously, this is where me and my wife started and I couldn't speak highly enough of the other guys/gals on this forum. You might end up on trails you think are too tough, but you will know that you have people in your group to get you out of any sticky situation. Honestly, there's no quicker way to learn to trust your jeep, and yourself.
Heck, I've had Chuck jump in my jeep and show me why I was having problems getting into 4 low my first time out. If they let a dummy like me tag along, they'll let anyone tag along!
I'd keep my eye on the forum and then reference any proposed trail run with the ratings on traildamage.com. People do everything from really hard, to family fun runs.