Gas, brain, buddies
. It really depends in how tough the trails are. If there is no chance of getting stuck, go for it alone, just use your head.
If there is a chance of getting stuck I the come d wheeling with a buddy in another rig. Winch, recovery straps, tire patch kit, jack, spare, lug but wrench, cell phone charger, first aid kit, flares
. Ok I'm going overboard.
Really it comes down to being smart and being safe. The Jeep will surprise you with it's capabilities but it does have its limits. Have fun! Be safe!