Trade it in on a new one!!!
Do you have the mechanical skills to diagnose and fix? If not, take it to a mechanic or at the vary least purchase the workshop manual as it will be helpful in your quest to self-diagnose.
Pull the spark plugs to see if they provide any clues... wet with fuel, dry, water soaked, etc... Check spark and fuel delivery and don't forget to check compression?
2012 JD855D OPS Black Poly Roof, Deluxe Cargo Box, Front and Rear Protection, Power Lift, Front Hood Rack, Rear Screen (homemade), 800 Watt Inverter, 2500lb Winch installed in cargo bed, Front and Rear LED auxiliary lighting (4" square 27 watt), Front and Rear CV Guards, Koplin Side Mirrors